Q: What are the prime factors of the number 423,312,304?

 A: 2, 29, 163, 193

Why are those the prime factors of the number 423,312,304?

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 423,312,304

423,312,304
Factor Arrows
2211,656,152
Factor Arrows
2105,828,076
Factor Arrows
252,914,038
Factor Arrows
226,457,019
Factor Arrows
29912,311
Factor Arrows
2931,459
Factor Arrows
163193

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, 29, 163, 193

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 29 x 29 x 163 x 193 = 423,312,304

This can also be written as 24 x 292 x 1631 x 1931 = 423,312,304

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


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