Q: What are the prime factors of the number 429,672?

 A: 2, 3, 17903

Why are those the prime factors of the number 429,672?

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 429,672

429,672
Factor Arrows
2214,836
Factor Arrows
2107,418
Factor Arrows
253,709
Factor Arrows
317,903

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, 17903

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 17,903 = 429,672

This can also be written as 23 x 31 x 17,9031 = 429,672

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


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