explain why 13×11+17+13 and 4×7×5×2+5 are composite numbers
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Step-by-step explanation:
13 × 11 + 17 + 13
= 13(11 x 17 + 1)
= 13(188)
Since the number has more than two factors, it is not a prime number
4 × 7 × 5 × 2 + 5
= 5(4 x 7 x 2 + 1)
= 5(57)
Since the number has more than two factors, it is not a prime number
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