Q: What are the prime factors of the number 422,732,450?

 A: 2, 5, 7, 197, 6131

Why are those the prime factors of the number 422,732,450?

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 422,732,450

422,732,450
Factor Arrows
2211,366,225
Factor Arrows
542,273,245
Factor Arrows
58,454,649
Factor Arrows
71,207,807
Factor Arrows
1976,131

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, 5, 7, 197, 6131

We can check our work by multiplying all of the prime factors together: 2 x 5 x 5 x 7 x 197 x 6,131 = 422,732,450

This can also be written as 21 x 52 x 71 x 1971 x 6,1311 = 422,732,450

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


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