Q: What are the prime factors of the number 372,477,123?

 A: 3, 17, 223, 1213

Why are those the prime factors of the number 372,477,123?

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 372,477,123

372,477,123
Factor Arrows
3124,159,041
Factor Arrows
341,386,347
Factor Arrows
313,795,449
Factor Arrows
34,598,483
Factor Arrows
17270,499
Factor Arrows
2231,213

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, 17, 223, 1213

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 17 x 223 x 1,213 = 372,477,123

This can also be written as 34 x 171 x 2231 x 1,2131 = 372,477,123

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


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