Q: What are the prime factors of the number 403,432,029?

 A: 3, 7, 11, 13, 23, 59

Why are those the prime factors of the number 403,432,029?

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 403,432,029

403,432,029
Factor Arrows
3134,477,343
Factor Arrows
344,825,781
Factor Arrows
314,941,927
Factor Arrows
72,134,561
Factor Arrows
11194,051
Factor Arrows
1117,641
Factor Arrows
131,357
Factor Arrows
2359

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, 7, 11, 13, 23, 59

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 7 x 11 x 11 x 13 x 23 x 59 = 403,432,029

This can also be written as 33 x 71 x 112 x 131 x 231 x 591 = 403,432,029

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


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