Q: What are the prime factors of the number 625,357,254?

 A: 2, 3, 89, 97, 12073

Why are those the prime factors of the number 625,357,254?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 625,357,254

625,357,254
Factor Arrows
2312,678,627
Factor Arrows
3104,226,209
Factor Arrows
891,171,081
Factor Arrows
9712,073

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 3, 89, 97, 12073

We can check our work by multiplying all of the prime factors together: 2 x 3 x 89 x 97 x 12,073 = 625,357,254

This can also be written as 21 x 31 x 891 x 971 x 12,0731 = 625,357,254

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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