Q: What are the prime factors of the number 7,172,064?

 A: 2, 3, 2767

Why are those the prime factors of the number 7,172,064?

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 7,172,064

7,172,064
Factor Arrows
23,586,032
Factor Arrows
21,793,016
Factor Arrows
2896,508
Factor Arrows
2448,254
Factor Arrows
2224,127
Factor Arrows
374,709
Factor Arrows
324,903
Factor Arrows
38,301
Factor Arrows
32,767

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, 2767

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 3 x 3 x 3 x 2,767 = 7,172,064

This can also be written as 25 x 34 x 2,7671 = 7,172,064

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


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