Q: What are the prime factors of the number 316,071,424?

 A: 2, 617327

Why are those the prime factors of the number 316,071,424?

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 316,071,424

316,071,424
Factor Arrows
2158,035,712
Factor Arrows
279,017,856
Factor Arrows
239,508,928
Factor Arrows
219,754,464
Factor Arrows
29,877,232
Factor Arrows
24,938,616
Factor Arrows
22,469,308
Factor Arrows
21,234,654
Factor Arrows
2617,327

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, 617327

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 617,327 = 316,071,424

This can also be written as 29 x 617,3271 = 316,071,424

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


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