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# Why is it that any 3 digit number that ends in 0 or 2 or 4 or 5 or 6 or 8 cannot be prime?

Updated: 12/23/2022 Wiki User

9y ago

A Prime number is evenly divisible only by itself and one. Any three digit number ending in 0, 2, 4, 6, or 8 is evenly divisible by 2 - so not a prime

Any three digit number ending in 5 is divisible by 5, so not a prime number.

The only even prime number is 2. The only prime number that ends in 5 is 5. Wiki User

9y ago   Earn +20 pts
Q: Why is it that any 3 digit number that ends in 0 or 2 or 4 or 5 or 6 or 8 cannot be prime?
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Any number that ends with the digit 5 is divisible by 5.Any number that ends with the digit 5 is divisible by 5.Any number that ends with the digit 5 is divisible by 5.Any number that ends with the digit 5 is divisible by 5.

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