Question

Explain why the number 7×11×3+13 is composite no.

Answer 1

because it not prime number

Answer 2

hey dear



here is your answer



solution




A composite number is a positive integer that has factor other than 1 and the number itself



< According to question >



7*11*3 +13 may be written as 13* [ ( 7*11) +1]


that is 13 * ( 78) are also the factors of a number



Further 78 = 39 *2


So 39 & 2 are also his factors



so this number definitely not prime



< hence it's a composite number >




hope it helps


thank you