Question

explain why 3 x5 x 7 + 7 is a composite number​

Answer 1

Answer:

Step-by-step explanation:

3x5x7+7=7(3x5+1), is a multiple of 7

And so is a composite number

Answer 2

Answer:

7(3×5×1+1)

Step-by-step explanation:

it is multiple of 7. So it is a composite number