Subject :IMO Class : Class 5

## Ans 5:

Class : Class 6

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

## Ans 6:

Class : Class 7

MY FIRST COMMENT WAS WRONG ... I WANTED TO WRITE -THE WHOLE NUMBER THAT IS THE FACTOR OF EVERY NUMBER IS _______.

## Ans 7:

Class : Class 5

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 8:

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 9:

Class : Class 5

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

## Ans 10:

Class : Class 1

Guys I am just clearing a doubt I am not sure though. The Ans should be D. Because the natural number which is the multiple of every number is the number itself. Like:1x1=1 2x2=2. Please tell me if I am wrong and make me understand. Thank u

## Ans 12:

Class : Class 5

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 14:

Class : Class 3

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 15:

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

## Ans 17:

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 22:

Class : Class 7

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

## Ans 24:

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.

## Ans 27:

Class : Class 5

FACTOR OF EVERY NUMBER IS 1!!!!!!!!!!!!!!!!!!!!!!!!!!! 1 IS NOT THE MULTIPLE OF EVERY NUMBER!!!!!!!!!!!!!!!!!!!!!!

## Ans 28:

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

## Ans 29:

Class : Class 8

in fact C should be the correct answer as there can not be any such number. By taking D as the correct answer we are ,at the same time, denying the statement given at C.

## Ans 31:

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.

## 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 37:

Class : Class 6

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 38:

Class : Class 6

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

## Ans 39:

Class : Class 6

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

## Ans 41:

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 42:

Class : Class 5

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 43:

Class : Class 5

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 44:

Class : Class 5

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

## Ans 45:

Class : Class 5

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 49:

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

## Ans 52:

Class : Class 8

the answer can't be B as every whole number is the multiple of 1 but 1 is not the multiple of any number.

## Ans 63:

Class : Class 6

Answer should be corrected, 1 is factor of any number, but not multiple of every number. Correct answer is C.

## Ans 67:

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.

## Ans 73:

Class : Class 8

Answer will be 0 because 2*0=0,5653453*0=0,4765868756733465358678757646535436536854786*0=0

## Ans 76:

Class : Class 5

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 77:

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 78:

Class : Class 5

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

## Ans 82:

Class : Class 5

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 84:

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?

## Ans 85:

Class : Class 7

THE ANSWER IS WRONG IF THE ANSWER IS CORRECT ,THEN THE QUESTION MUST BE -THE WHOLE NUMBER THAT IS THE MULTIPLE OF EVERY NUMBER IS ___.

## Ans 89:

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 92:

Class : Class 5

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 94:

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 95:

Class : Class 5

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

## Ans 97:

Class : Class 5

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

## Ans 100:

Class : Class 6

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

## Ans 101:

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??

## Ans 102:

Class : Class 5

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 107:

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 .