Q: What are the prime factors of the number 231,056,550?

 A: 2, 3, 5, 2113

Why are those the prime factors of the number 231,056,550?

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 231,056,550

231,056,550
Factor Arrows
2115,528,275
Factor Arrows
338,509,425
Factor Arrows
312,836,475
Factor Arrows
34,278,825
Factor Arrows
31,426,275
Factor Arrows
3475,425
Factor Arrows
3158,475
Factor Arrows
352,825
Factor Arrows
510,565
Factor Arrows
52,113

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, 2113

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 3 x 3 x 3 x 3 x 5 x 5 x 2,113 = 231,056,550

This can also be written as 21 x 37 x 52 x 2,1131 = 231,056,550

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


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