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Are 51 61 71 91 prime numbers?

Updated: 4/28/2022
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10y ago

Best Answer

3 x 17 = 51. It has factors other than 1 and itself. It is composite.

61 is prime. Its only factors are 1 and 61.

71 is prime. Its only factors are 1 and 71.

7 x 13 = 91. It is a composite number.

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10y ago
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Q: Are 51 61 71 91 prime numbers?
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