Q: What are the prime factors of the number 202,733,440?

 A: 2, 5, 7, 13, 59

Why are those the prime factors of the number 202,733,440?

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 202,733,440

202,733,440
Factor Arrows
2101,366,720
Factor Arrows
250,683,360
Factor Arrows
225,341,680
Factor Arrows
212,670,840
Factor Arrows
26,335,420
Factor Arrows
23,167,710
Factor Arrows
21,583,855
Factor Arrows
5316,771
Factor Arrows
745,253
Factor Arrows
133,481
Factor Arrows
5959

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, 5, 7, 13, 59

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 5 x 7 x 13 x 59 x 59 = 202,733,440

This can also be written as 27 x 51 x 71 x 131 x 592 = 202,733,440

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


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