Q: Is 25 a prime or composite?

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25 is a composite because it is also divisible by 5. As soon as you see that '5' on the end, you know it's a multiple of 5, regardless of what came before the '5'.Since it has at least one more factor in addition to '1' and itself, it's not a prime number.It is composite.

composite

It is composite.

It's clearly not prime; no even number is prime. It is composite.

169 is composite because if you do (13*13) it on a calculator then you will figure out that 169 is composite.

Related questions

5 prime, 25 composite.

Composite.

25 is composite.

composite

25 is not a prime number. It is composite.

composite and square

25 is a composite number. A prime number has only 2 factors which are 1 and itself. Composite numbers are everything else except 1 and 0. 1 and 0 are neither prime, nor composite.

25 is a Composite Number.

25 is a composite number because it has more than two factors

composite because it has more than two factors

10, 25, 50 are the composite factors of the composite number 50. 2 and 5 are prime.

No because 11 is a prime number but the rest of them are composite numbers.