Question

explain why
5x7x2+7 and 5x4x3x2x1+5
are composite numbers

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Answer 1

Answer:

5×7×2+7=77

and 5×4×3×2×1+5=125

As 77 and 125 has more than 1 factor . so they are composite no.

Step-by-step explanation:

factors of 77=1,7,11,77

factors of 125= 1,5,25,125

Answer 2

Step-by-step explanation:

$5 \times 7 \times 2 + 7 = 77$

and

$5 \times 4 \times 3 \times 2 \times 1 + 5 = 125$

$we \: know \: that \: 77 \: and \: 125 \: has \: more \: than \: 1 \: factor$

$so \: they \: are \: cmposite \: number$

$factor \: of \: 77 = 1 , 7 ,11 ,77 |$

and

$factor \: of \: 125 = 1,5,25,125$