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Rahul from , NOIDA

Subject :IMO Class : Class 4

The product X = 2 x 2 x 3 x 5 x 7 x 7 x 11 x 13 x 17 x 19 is not divisible by a number. Which is the number?

(A) 220

(B) 51

(D) 54

Ans 1:

Mohnish S from CMR National Public School, Bengaluru

Class : Class 4

Can you please help with solving this question

Dhairya Godbole from KLE Eng Medium School, SOLAPUR

Class : Class 6

what is the shortest method to solve this question