Q: What are the prime factors of the number 242,536,125?

 A: 3, 5, 13, 43, 89

Why are those the prime factors of the number 242,536,125?

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 242,536,125

242,536,125
Factor Arrows
380,845,375
Factor Arrows
516,169,075
Factor Arrows
53,233,815
Factor Arrows
5646,763
Factor Arrows
1349,751
Factor Arrows
133,827
Factor Arrows
4389

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:

3, 5, 13, 43, 89

We can check our work by multiplying all of the prime factors together: 3 x 5 x 5 x 5 x 13 x 13 x 43 x 89 = 242,536,125

This can also be written as 31 x 53 x 132 x 431 x 891 = 242,536,125

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


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