Question

express why 7×11×13×15+15 is a composite number​

Answer 1

Answer:

In math, composite numbers can be defined as the whole numbers that have more than two factors.  

Whole numbers that are not prime are composite numbers, because they are divisible by more than two numbers.

Step-by-step explanation:

Answer 2

Step-by-step explanation:

7 × 11 × 13 ×15 + 15

= 15 ( 7 × 11 × 13 + 1 )

= 15 ( 1001 + 1 )

= 15 × 1002

= 1 × 15 × 1002.

Therefore , It is a composite number because it has 3 factor.