Q: What are the prime factors of the number 3,264,768?

 A: 2, 3, 13, 109

Why are those the prime factors of the number 3,264,768?

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 3,264,768

3,264,768
Factor Arrows
21,632,384
Factor Arrows
2816,192
Factor Arrows
2408,096
Factor Arrows
2204,048
Factor Arrows
2102,024
Factor Arrows
251,012
Factor Arrows
225,506
Factor Arrows
212,753
Factor Arrows
34,251
Factor Arrows
31,417
Factor Arrows
13109

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, 13, 109

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 3 x 3 x 13 x 109 = 3,264,768

This can also be written as 28 x 32 x 131 x 1091 = 3,264,768

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


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