Explain why 15*7+7 is a composite no.
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5
15*7+7 = 7(15+1) = 7*16*1
Since this number has more than two factors, Therefore, it is a composite number.
Since this number has more than two factors, Therefore, it is a composite number.
Answered by
1
15×7+7=112
it has factor 5^n+2^n
it has factor 5^n+2^n
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