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Because 5x5=25, and 9x3=27.
A Prime number can be divided evenly only by 1, or itself.
What else can I help you with?
Is 13 15 17 19 21 23 25 27 29 prime numbers?
They are all prime numbers except for 15 21 25 and 27 which are composite numbers
Which is a prime numbers 21 23 25 or 27?
It is 23
What 2 prime numbers add up to 27?
29
Is 25 or 27 a prime number?
25 and 27 are composite numbers because they both have factors in addition to 1 and themselves.
Is 23 or 24 or 25 or 26 or 27 or 28 or29 a prime number?
23 and 29 are prime numbers
Which of the numbers do not have a prime factorization that is made of all the same numbers 16 24 27 25?
24 doesn't.
How do you know what numbers between 25-50 are prime?
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!
Can two odd numbers be relatively prime?
Yes, e.g. 3 and 5 are relatively prime, 27 (33) and 25 (52) are relatively prime...
Is 27 and 57 a pair of prime numbers?
No, neither 27 nor 57 are prime numbers.
Are 27 and 52 prime numbers?
Neither 27 nor 52 are prime numbers. Both are composite numbers, instead.
Which are prime numbers 23 27 36 or 39?
23 and 27 are prime numbers whereas 36 and 39 are composite numbers.
Is 27 prime numbers?
no
