Q: What are the prime factors of the number 228,537,372?

 A: 2, 3, 7, 137, 2837

Why are those the prime factors of the number 228,537,372?

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 228,537,372

228,537,372
Factor Arrows
2114,268,686
Factor Arrows
257,134,343
Factor Arrows
319,044,781
Factor Arrows
72,720,683
Factor Arrows
7388,669
Factor Arrows
1372,837

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, 7, 137, 2837

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 7 x 7 x 137 x 2,837 = 228,537,372

This can also be written as 22 x 31 x 72 x 1371 x 2,8371 = 228,537,372

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


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