Q: What are the prime factors of the number 1,425,664?

 A: 2, 5569

Why are those the prime factors of the number 1,425,664?

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 1,425,664

1,425,664
Factor Arrows
2712,832
Factor Arrows
2356,416
Factor Arrows
2178,208
Factor Arrows
289,104
Factor Arrows
244,552
Factor Arrows
222,276
Factor Arrows
211,138
Factor Arrows
25,569

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, 5569

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 2 x 2 x 5,569 = 1,425,664

This can also be written as 28 x 5,5691 = 1,425,664

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


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