Question

explain why
7X 11X13 +13 and
7 X6 X5 X4 X3 X2X1 +5 are combosite number
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Answer 1

Answer:

Good Morning......✌

Step-by-step explanation:

Given 7×11×13+13

=13×(7×11+1)=3×78

This number is multiple of two integers.Hence it has more than two factors.Hence it is a composite number.

similarly in

7×6×5×4×3 ×2×1+5

=5(7×6×4×3 ×2×1+1)=5×1009

This number is multiple of two integers.Hence it has more than two factors.Hence it is a composite number.

Answer 2

Answer:

Because composite numbers have more than two factors and as shown it has more than two factors as it is multipled by so many numbers....