Q: What are the prime factors of the number 423,466,560?

 A: 2, 3, 5, 11, 13367

Why are those the prime factors of the number 423,466,560?

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 423,466,560

423,466,560
Factor Arrows
2211,733,280
Factor Arrows
2105,866,640
Factor Arrows
252,933,320
Factor Arrows
226,466,660
Factor Arrows
213,233,330
Factor Arrows
26,616,665
Factor Arrows
32,205,555
Factor Arrows
3735,185
Factor Arrows
5147,037
Factor Arrows
1113,367

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, 5, 11, 13367

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 3 x 3 x 5 x 11 x 13,367 = 423,466,560

This can also be written as 26 x 32 x 51 x 111 x 13,3671 = 423,466,560

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


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