Q: What are the prime factors of the number 431,412,450?

 A: 2, 3, 5, 7, 157, 2617

Why are those the prime factors of the number 431,412,450?

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 431,412,450

431,412,450
Factor Arrows
2215,706,225
Factor Arrows
371,902,075
Factor Arrows
514,380,415
Factor Arrows
52,876,083
Factor Arrows
7410,869
Factor Arrows
1572,617

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, 5, 7, 157, 2617

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 5 x 7 x 157 x 2,617 = 431,412,450

This can also be written as 21 x 31 x 52 x 71 x 1571 x 2,6171 = 431,412,450

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


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