35 can be a factor, but it is not prime.
81 is not prime. Its prime factorization is 3x3x3x3.
There is no factorization. 37 is a prime number.37 is already prime. Its only prime factor is itself.
No, 51 isn't prime. 17 is the largest prime factor of 306.
155 is not a prime number, so it can't be a prime factor.
643 is a prime number. So its factors are 1 and 643.
prime
643 is a prime number. Threby its factors are only 1 and itself.
643 is a prime number. Its only positive integer factors are itself and 1.
2572/2=1286 1286/2=643 2*2*643
Yes. Any time three is a factor, it is a prime factor.
It is a factor of 132, not a prime factor.
All numbers have factors. Some factors are prime numbers. A prime factor is a factor that is a prime number. A common prime factor is a prime factor that appears on the list of factors of two or more given numbers.
19 is a prime factor.
35 can be a factor, but it is not prime.
A factor can or cannot be a prime number Ex: 2 is the factor of all other even numbers its a prime number but 9 is a factor of 18 and its not a prime number A prime is a factor but a factor being a prime number varies
81 is not prime. Its prime factorization is 3x3x3x3.