Q: What are the prime factors of the number 231,220,518?

 A: 2, 3, 23, 79, 127, 167

Why are those the prime factors of the number 231,220,518?

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 231,220,518

231,220,518
Factor Arrows
2115,610,259
Factor Arrows
338,536,753
Factor Arrows
231,675,511
Factor Arrows
7921,209
Factor Arrows
127167

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, 23, 79, 127, 167

We can check our work by multiplying all of the prime factors together: 2 x 3 x 23 x 79 x 127 x 167 = 231,220,518

This can also be written as 21 x 31 x 231 x 791 x 1271 x 1671 = 231,220,518

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


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