Q: What are the prime factors of the number 231,020,550?

 A: 2, 3, 5, 349, 1471

Why are those the prime factors of the number 231,020,550?

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 231,020,550

231,020,550
Factor Arrows
2115,510,275
Factor Arrows
338,503,425
Factor Arrows
312,834,475
Factor Arrows
52,566,895
Factor Arrows
5513,379
Factor Arrows
3491,471

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, 5, 349, 1471

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 5 x 5 x 349 x 1,471 = 231,020,550

This can also be written as 21 x 32 x 52 x 3491 x 1,4711 = 231,020,550

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


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