Q: What are the prime factors of the number 1,817,472?

 A: 2, 3, 4733

Why are those the prime factors of the number 1,817,472?

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 1,817,472

1,817,472
Factor Arrows
2908,736
Factor Arrows
2454,368
Factor Arrows
2227,184
Factor Arrows
2113,592
Factor Arrows
256,796
Factor Arrows
228,398
Factor Arrows
214,199
Factor Arrows
34,733

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, 4733

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 3 x 4,733 = 1,817,472

This can also be written as 27 x 31 x 4,7331 = 1,817,472

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


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