Q: What are the prime factors of the number 3,713,472?

 A: 2, 3, 7, 307

Why are those the prime factors of the number 3,713,472?

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 3,713,472

3,713,472
Factor Arrows
21,856,736
Factor Arrows
2928,368
Factor Arrows
2464,184
Factor Arrows
2232,092
Factor Arrows
2116,046
Factor Arrows
258,023
Factor Arrows
319,341
Factor Arrows
36,447
Factor Arrows
32,149
Factor Arrows
7307

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, 7, 307

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 3 x 7 x 307 = 3,713,472

This can also be written as 26 x 33 x 71 x 3071 = 3,713,472

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


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