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70 is an even number and the only even prime is 2. This tells you right away that 70 is composite.

Also, 70=2 X 5 X 7, so the prime factorization also shows you it is composite.
70 is a composite number because it has at least one positive factor other than one or itself.

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โˆ™ 2016-01-18 01:01:35
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โˆ™ 2020-04-20 20:54:31

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Q: Is 70 prime or composite
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