Q: What are the prime factors of the number 423,311,025?

 A: 3, 5, 61, 67, 1381

Why are those the prime factors of the number 423,311,025?

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 423,311,025

423,311,025
Factor Arrows
3141,103,675
Factor Arrows
528,220,735
Factor Arrows
55,644,147
Factor Arrows
6192,527
Factor Arrows
671,381

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, 61, 67, 1381

We can check our work by multiplying all of the prime factors together: 3 x 5 x 5 x 61 x 67 x 1,381 = 423,311,025

This can also be written as 31 x 52 x 611 x 671 x 1,3811 = 423,311,025

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


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