Definition of Prime Factor

 

prime factorization calculator: This program will calculate the prime factorization of the number of your choice.
a prime factor is simply a prime number that is also a factor of another number.
The prime factors of 21 are 3 & 7. Since 3 is a prime number and a factor of 21 it is a prime factor of 21. The same goes for 7, which is both prime and a factor of 21.
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