Q: What are the prime factors of the number 250,356,688?

 A: 2, 17, 61, 79, 191

Why are those the prime factors of the number 250,356,688?

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 250,356,688

250,356,688
Factor Arrows
2125,178,344
Factor Arrows
262,589,172
Factor Arrows
231,294,586
Factor Arrows
215,647,293
Factor Arrows
17920,429
Factor Arrows
6115,089
Factor Arrows
79191

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, 17, 61, 79, 191

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 17 x 61 x 79 x 191 = 250,356,688

This can also be written as 24 x 171 x 611 x 791 x 1911 = 250,356,688

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


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