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Why is every number with a 5 in the ones place not prime
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Why is every number with a 5 in the ones place not prime
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Jun 6, 2016
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Why is every number with a 5 in the ones place not prime
Mathematics
middle-school
Gchtr
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Every number that ends with a 5, besides 5, is not a prime number because it is divisible by 5. Prime numbers are only divisible by themselves and 1.
Jorge
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Jun 9, 2016
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Well, not exactly EVERY one of them. The number ' 5 ' is a prime. But all the others are multiples of 5, so they're not primes.
JasonMichael
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Jun 12, 2016
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