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The only Prime number that ends in a 5 is 5 itself. All the other positive integers that end in 5 are divisible by 5 and therefore not prime.
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Earn +20 ptsQ: What prime number ends in a 5?
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Why can't 22334455 be a prime number?
The only prime number that ends in 5 is 5.
Explain why 45 is not a prime number?
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.
Why is 5 the only prime number that ends with 5?
because all other numbers that end with 5 are divided by 5, in which case they are not prime!
Is 85 prime?
No, 85 is not prime. It ends in a 5, so the number itself is divisible by 5, so it has factors other than 1 and itself. 85 = 5 x 17.
Is 1755 a prime number?
No, and one of the first giveaways would be that it ends in a 5.
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