Question

Explain why 7* 11 * 13+ 13 and 7 * 6* 5 * 4 * 3 * 2 x 1 + 5 are composite numbers
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Answer 1

Definition

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

Given

Given 7×11×13+13

=13×(7×11+1)=3×78

Thus,

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.

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Answer 2

Answer:

Definition

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

Given

Given 7×11×13+13

=13×(7×11+1)=3×78

Thus,

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

Step-by-step explanation:

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