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Why is the numbers with a 5 in the ones place not prime numbers

Why is the numbers with a 5 in the ones place not prime numbers
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Why is the numbers with a 5 in the ones place not prime numbers

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User Beetri
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2 Answers

5 votes
because they're also divisible by 5
which means they're not prime numbers
answered
User Alexandrw
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8.2k points
7 votes
Because it is divisible by 5 even though 5 is a prime number.
answered
User Davir
by
8.2k points
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