Q: What are the prime factors of the number 421,313,229?

 A: 3, 83, 127, 4441

Why are those the prime factors of the number 421,313,229?

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 421,313,229

421,313,229
Factor Arrows
3140,437,743
Factor Arrows
346,812,581
Factor Arrows
83564,007
Factor Arrows
1274,441

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, 83, 127, 4441

We can check our work by multiplying all of the prime factors together: 3 x 3 x 83 x 127 x 4,441 = 421,313,229

This can also be written as 32 x 831 x 1271 x 4,4411 = 421,313,229

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


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