Q: What are the prime factors of the number 250,515,315?

 A: 3, 5, 17, 6421

Why are those the prime factors of the number 250,515,315?

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 250,515,315

250,515,315
Factor Arrows
383,505,105
Factor Arrows
327,835,035
Factor Arrows
39,278,345
Factor Arrows
51,855,669
Factor Arrows
17109,157
Factor Arrows
176,421

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, 5, 17, 6421

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 5 x 17 x 17 x 6,421 = 250,515,315

This can also be written as 33 x 51 x 172 x 6,4211 = 250,515,315

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


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