Q: What are the prime factors of the number 625,015,431?

 A: 3, 19, 829, 4409

Why are those the prime factors of the number 625,015,431?

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 625,015,431

625,015,431
Factor Arrows
3208,338,477
Factor Arrows
369,446,159
Factor Arrows
193,655,061
Factor Arrows
8294,409

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:

3, 19, 829, 4409

We can check our work by multiplying all of the prime factors together: 3 x 3 x 19 x 829 x 4,409 = 625,015,431

This can also be written as 32 x 191 x 8291 x 4,4091 = 625,015,431

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


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