Question

Q) Explain why 15 x 7 + 7 is a composite number.

Answer 1

Answer:

112

Step-by-step explanation:

15×7=105+7=112

its simple qurstion

Answer 2

15 x 7 + 7

= 7(15 + 1)

= 7(16)

= 7 x 4 x 4

= 7 x 2 x 2 x 2 x 2

= 7 x 2⁴

it is the product of prime factors 2 and 7. Therefore, it is a composite number.