# User Forum Subject :IMO    Class : Class 5

The natural number which is a multiple of every number is ______.

A 0
B 1
C There is no such number
D None of these

answer must be c

## Ans 1:

Class : Class 5
The correct answer is C

## Ans 2:

Class : Class 6
FACTOR OF EVERY NUMBER IS 1!!!!!!!!!!!!!!!!!!!!!!!!!!! 1 IS NOT THE MULTIPLE OF EVERY NUMBER!!!!!!!!!!!!!!!!!!!!!!

## Ans 3:

Class : Class 9
the answer is c because 0 is a natural number and 1 is the only multiple of itself

## Ans 4:

Class : Class 4
The answer should be C

## Ans 5:

Class : Class 6
i think it should be c

## Ans 6:

Class : Class 6
the answer is obviously C because 0 is the only number which is it but it is a whole number

## Ans 7:

Class : Class 8
the correct answer should be option c.

Class : Class 7
maybe a.

## Ans 9:

Class : Class 6
Ans is because 0 is not a natural number and 1 is a factor of every number not a multiple

## Ans 10:

Class : Class 6
1 is a factor of every number not a multiple . there is no such number as the smallest multiple of a number is the number itself

## Ans 11:

Class : Class 5
The answer is C as there is no such number that is a multiple of every number. If it were a factor then it would have been correct

Class : Class 5
nope

## Ans 13:

Class : Class 6
The answer is wrongly given at the back . It should be C

Class : Class 6
foolish

## Ans 15:

Class : Class 6
Either the question should be ''The natural number is a factor of every number is ________________.'' or the solution that SOF Olympiad Trainer has given the wrong output. The answer should be C. Please change the output SOF Olympiad Trainer.

## Ans 16:

Class : Class 6
Is 0 a natural number? Well 1 can never be the MULTIPLE of every number. 1 is the multiple of only itself.

## Ans 17:

Class : Class 6
Answer is C . If 1 has to be the answer , the question should be " The natural number which is a factor of every number is "

## Ans 18:

Class : Class 6
Answer is C because 1 is a natural number and also the FACTOR of every number. It isn't possible that B is the answer for multiple.

## Ans 19:

Class : Class 5
The correct answer is 'C' as 0 is the multiple of every number and it is not a natural number. So, the answer is ' There is no such number '

## Ans 20:

Class : Class 5
answer is c as 0 is not a natural number and 1 is a factor of every number,not multiple

## Ans 21:

Class : Class 5
The answer should be A or B since if the answer A, that is 0, it can be the answer as any number multiplied by 0 is equal to 0. But, if the answer is B, that is 1, it can be the answer if the question has been framed wrongly, that is, if the question would have been "What is the common factor of all the numbers" since all numbers are divisible by 1. But how could the question possibly go so horribly wrong?

Class : Class 3
The answer is C

## Ans 23:

Class : Class 10
one is not a multiple of every number , but every number is a multiple of one, . zero is not a multiple of every number . answer is definitely C

## Ans 24:

Class : Class 10
the smallest multiple of a number is itself

## Ans 25:

Class : Class 7
The correct answer is C

## Ans 26:

Class : Class 5
the ans is C dude! how the sh*8 is that 1?! coz' 1 is the factor of every number, man. are we doing timepass here??

Class : Class 6
c

Class : Class 8
0 is the answer

## Ans 29:

Class : Class 6
It should be c. There is no such number. And 1 is factor not multiple!!!

Class : Class 5
REeeeeeeeeeeee

## Ans 31:

Class : Class 5
0 is the answer but it is showing 1 as answer. Problem!

## Ans 32:

Class : Class 4
1 is the factor of every number not multiple he should learn.

## Ans 33:

Class : Class 5
C because 1 is a common FACTOR of every number, not multiple. And 0 is a whole number and I doubt any other number would be a multiple for every number so it's gotta be C.

## Ans 34:

Class : Class 6
0 is not a natural number

## Ans 35:

Class : Class 3
1 is a factor of all natural numbers .It is not multiple of all numbers

## Ans 36:

Class : Class 4
The correct answer is 'c' because there is no such number that is a multiple of every number and 1 is the factor of every number and not the multiple .

## Ans 37:

Class : Class 4
1X0 IS 0.2XO 03X0 0easy peasy.

Class : Class 10
0 is the answer

Class : Class 5

Class : Class 6

## Ans 41:

Class : Class 6
The answer should be C.

## Ans 42:

Class : Class 9
the answer should be c because 1 is a factor of every number and the smallest multiple of any number is the number itself

Class : Class 5
I mean ans is c

## Ans 44:

Class : Class 5
it must be c as 1 is the factor of every number not multiple!

## Ans 45:

Class : Class 5
The answer is C. One is not a multiple of every number

## Ans 46:

Class : Class 6
ccccccccccccccccccccccccccccccccccccccc

## Ans 47:

Class : Class 7
yes the answer is wrong on the SOF portal . It is showing answer B but the correct answer is C

## Ans 48:

Class : Class 8
you guys are right

Class : Class 2
I agree

## Ans 50:

Class : Class 6
Answer is D. 1 is not a multiple but factor of all natural numbers.

## Ans 51:

Class : Class 1
(C) (C) (C) (C) (C) IS CORRECT

## Ans 52:

Class : Class 5
the ans is c because 1 is a factor of every no. not a multiple.the answer would be 0 if they asked for a whole no.

Class : Class 5
sure it is C

## Ans 54:

Class : Class 6
how can 1 be a multiple of a number accept 1 itself . I suggest the human to write all tables 1000 times

Class : Class 7
wrong ans shown

## Ans 56:

Class : Class 6
1 is the factor of every number not a multiple.The answer should be (A)

## Ans 57:

Class : Class 2
C is the answer. I donât understand how 1 can come.

## Ans 58:

Class : Class 5
The answer will not be 1 as 1 is a factor of every number, not a multiple. The multiple of every number is infinite, not the 2nd Natural number.

Class : Class 8
0 is the answer

Class : Class 8
nope!

## Ans 61:

Class : Class 2
The corretct answer is C because there is no such number which comes in all the tables. Multiples are the products of numbers. Then how is it possible that SOF website is showing the answer is 1

## Ans 62:

Class : Class 4
Kavya Vikas Gatkal from Podar International School JalnaThe answer is c because 1 is a factor of every number not a multiple

Class : Class 6
the answer is c

## Ans 64:

Class : Class 9
The answer is definitely c "There is no such number" as 0 is not a natural number but a whole number. Secondly though 1 is a natural number it is only a multiple of itself and not a multiple of every number.

## Ans 65:

Class : Class 6
it is 0 its the answer 0 is the multiple of every number see 1 multiplied by 0 is 0 then 1 multiplied by 1 is 1 so 0 comes before one and it comes in every numbers table but we dont list

## Ans 66:

Class : Class 6
Agreed , answer is C. 1 is not a multiple of every number, it is a factor of every number. There is a error in the answer system.

## Ans 67:

Class : Class 6
it should be C not B

## Ans 68:

Class : Class 7
The correct answer is C

Class : Class 6

Class : Class 8

Class : Class 8
it may be c or d

Class : Class 5
0 is the answer

## Ans 73:

Class : Class 8
souvagya saha from de nobili fri dhanbad1is a factor of every number. the answer is c.

## Ans 74:

Class : Class 7
the answer should be c. 1 is a natural number but it is a factor of every number not a multiple. and zero is a whole no. so it should be whole no. which is a multiple of every no.

## Ans 75:

Class : Class 7
the correct answer is c

Class : Class 5
c

## Ans 77:

Class : Class 7
Anwer is C. 1 is a factor of every number and not the multiple

Class : Class 5

## Ans 79:

Class : Class 5
The question is wrong....1 can be factor of all natural numbers not the multiple

## Ans 80:

Class : Class 6
THERE IS NO SUCH NUMBER. THE SMALLEST MULTIPLE OF A NUMBER IS THE NUMBER IT SELF.

Class : Class 6
The answer is C.

Class : Class 4
c is the ans.

## Ans 83:

Class : Class 5
The ans is D because the number that is the multiple of every number is the number itself. Ex- 6 x 1 = 6

## Ans 84:

Class : Class 6
The answer is C because 1 is the factor of every number, not the multiple. And 0 is the multiple of every number but it is not a natural number

## Ans 85:

Class : Class 6
C is the correct answer

## Ans 86:

Class : Class 6
the correct answer is C

## Ans 87:

Class : Class 5
None of the above- option is the correct answer. I think we should report it as error instead of discussing on forum so much. See SOF's answer is wrong so there they shown no solution. They themselves know their mistake but not correct it. There are many mistakes such as this. I think next time SOF improves.

## Ans 88:

Class : Class 6
Correct answer should be C. 1 is a natural number but it's not multiple of every number, rather it's factor of every number.

Class : Class 6
`

Class : Class 2
the answer is c

Class : Class 6
C

Class : Class 9

## Ans 93:

Class : Class 4
The answer should be C. If it was a whole number, then it would have been 0. The question seems to be framed wrongly. The question should have been, " The natural number which is a factor of every number is 1". The answer is wrong.

## Ans 94:

Class : Class 7
The answer is C because 1 is a natural number but not a multiple of every number and 0 is a multiple of every number but it is not a natural number

## Ans 95:

Class : Class 1
every number multiplyied by 0 is 0 so its (A)

## Ans 96:

Class : Class 8
How is the answer "B".IF THE QUESTION WAS "a number which is a factor of every number, then the answer is b because all numbers can be multiplied by one .but in this question the correct answer is c

## Ans 97:

Class : Class 8
SOF should correct the answer it can create confusion among the kids 0 is a whole number, 1 is factor of every number so definitely there is no such number whose multiple is 1

## Ans 98:

Class : Class 5
Master Answer Admin from Revisewise Noida please resolve this doubt and provide explanation. Answer should be C because 0 and 1 can never be multiple of any number. 0 multiplied by any number is 0 only, thus it can never be a multiple. 1 multiplied by any number is the number itself, but any number multiplied by another number is not 1, thus even 1 is not the answer. By choosing Opt. D we deny the fact that there is no such SPECIFIC number (which means we say there is a specific number). So ONLY Option C is correct.Correct, we must report this as error because our doubt has not yet been clarified. SOF PLEASE PLEASE help

## Ans 99:

Class : Class 8
0 is the only answer

Class : Class 7
The answer is C.

## Ans 101:

Class : Class 7
The answer is a because 0 is a natural number and is a multiple of every number. for eg- 19*0

Class : Class 3

Class : Class 5
Maybe c

Class : Class 6

## Ans 105:

Class : Class 5
just clearing, 0 is correct but it is not a natural number tho. i think the answer should be C and why this fu*kin trainer shows B ?????

## Ans 106:

Class : Class 5
It should be d . Please tell us master admin

## Ans 107:

Class : Class 5
MASTER ANSWER !!!!!!!!!!!!! ANS IS C.......... .

## Ans 108:

Class : Class 6
The answer should be C because 1 is multiple of only 1, not any other number but, it is a factor of every number

## Ans 109:

Class : Class 7
zero is not a natural number, so A is incorrect. The correct answer must be D

## Ans 110:

Class : Class 5
the question is the wrongthe correct option is cand the smallest multiple of every number is the number it itself

## Ans 111:

Class : Class 7
CORRECT ANSWER IS D BECAUSE THE BECAUSE THE SMALLEST MULTIPLE OF A NUMBER IS THE NUMBER ITSELF.

Class : Class 6

## Ans 113:

Class : Class 5
ans B if you don't know then scratch your brain

Class : Class 6
0 is the answer