Question

Explain why 3×5×7+7 is a composite number?​

Answer 1

${\huge{\bold{\underline{question:-}}}}$

Explain why 3×5×7+7 is a composite number.

${\huge{\bold{\underline{Answer:-}}}}$

3×5×7+7=105+7=112. 112 is an even number and is therefore a composite number. Also, 112 is divisible by other numbers such as 2,4,7,8,14,16,28 and 56 apart from itself 112 and 1

Hence 3×5×7+7 is a composite number