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Q: Why cant number 5 be a prime number?

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Other than 2, no prime numbers are even. So prime numbers can't end in even numbers. After 5, no prime number can end in 5. After 5, all prime numbers end in 1, 3, 7 or 9.

5 is a prime number.

5 is prime.

A prime number has no factors other than 1 and itself. Each multiple of fifteen includes 3, 5, and 15 among its factors.

The number 45 is not a prime. It can be divided by 3 and 5. The number 5 is prime, and any number ending in 5 is divisible by 5 and will not be prime for that reason.

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Other than 2, no prime numbers are even. So prime numbers can't end in even numbers. After 5, no prime number can end in 5. After 5, all prime numbers end in 1, 3, 7 or 9.

70 is the smallest number that has prime factors of 2,5 and 7

169 is not a prime number because it cant be evenly divided.

5 is a prime number.

293 is a prime number, therefore the prime factorization of it would be 293, you cant do 293x1 because 1 is NOT a prime number therefore you cant do it because it wouldn't b a prime factorization that is your answer

yes 5 is a prime number,because it is divided by itself

A prime number has no factors other than 1 and itself. Each multiple of fifteen includes 3, 5, and 15 among its factors.

5 is a prime number. It is only evenly divisible by itself and one.5 is a prime number, so the only prime factor of 5 is itself.5 is already a prime number; it has no factorization.

5 is prime.

If 135 was a prime number its only factors would be 1 and 135, but by ending in a 5 that means 5 is a factor which means it cant be a prime number, so its factors are atleast (may be more) 1,5,27,135 which makes it composite.

5 is the prime number.

5 is a prime number.