The number 25 is not prime but composite. This is because besides itself and 1 other different factor, it has other divisors, chiefly 5. The number is a square (5 x 5), and no square can be prime.
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It is: 5 that is a prime factor of 25
There are more than 25 prime numbers; there are an infinite number of prime numbers.
25 is a composite number. The prime factorization of 25 is 5 x 5. 2 x 5 is the prime factorization of 10.
The prime factorization of 25 using exponents is: 52
The sum of the first 25 prime numbers is 1,060.