Q: What are the prime factors of the number 231,660,240?

 A: 2, 3, 5, 7, 19699

Why are those the prime factors of the number 231,660,240?

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 231,660,240

231,660,240
Factor Arrows
2115,830,120
Factor Arrows
257,915,060
Factor Arrows
228,957,530
Factor Arrows
214,478,765
Factor Arrows
34,826,255
Factor Arrows
5965,251
Factor Arrows
7137,893
Factor Arrows
719,699

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, 7, 19699

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 5 x 7 x 7 x 19,699 = 231,660,240

This can also be written as 24 x 31 x 51 x 72 x 19,6991 = 231,660,240

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


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