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Q: Is 25 or 27 a prime number?

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29 is prime.

Because 5x5=25, and 9x3=27. A prime number can be divided evenly only by 1, or itself.

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No, 27 is not a prime number. 3x9 = 27

Yes, e.g. 3 and 5 are relatively prime, 27 (33) and 25 (52) are relatively prime...

25 = 5 x 5 27 = 3 x 9 29 is prime

the 4th prime number is 7

29 is the next prime number after 27. But 27 is not a prime! 3 x 9 = 27!

23 and 29 are prime numbers

25 is not a prime number. It is composite.

The number 1 is neither prime nor composite. The numbers 25, 16, 21, and 27 are divisible by factors that are not one or the number itself. 19 is the only one that has only 1 and itself as factors, so it is a prime number.

27 is not a prime number.

27 and 31 are prime.

It can be. 27 is relatively prime to 28.

The prime number 3 can divide 27 and 36.

No.

25 is not a prime number since it can be evenly divided by 5 as well as 1 and 25.

To know what numbers are prime between 25-50, you'd have to figure out if any number besides 1 and that number itself can go into that number. Another key, is that all even numbers between 25 and 50 are NOT prime numbers. The only even number, that is prime is 2. So you'd have to go through all the odds between 25-50. For example: 27 is divisible by: 1,3,9, and 27 ~composite~ 29 is divisible by 1 and 29 ~prime~ Hope that helps!

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prime factoring for 27 is 3 x 9.

Yes. 25 is a multiple of 5 and the number 5 is a prime number.

1,721 is a prime number.

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