Q: What are the prime factors of the number 228,725,145?

 A: 3, 5, 11, 79, 5849

Why are those the prime factors of the number 228,725,145?

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 228,725,145

228,725,145
Factor Arrows
376,241,715
Factor Arrows
325,413,905
Factor Arrows
55,082,781
Factor Arrows
11462,071
Factor Arrows
795,849

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, 11, 79, 5849

We can check our work by multiplying all of the prime factors together: 3 x 3 x 5 x 11 x 79 x 5,849 = 228,725,145

This can also be written as 32 x 51 x 111 x 791 x 5,8491 = 228,725,145

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


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