Q: What are the prime factors of the number 756,324?

 A: 2, 3, 47, 149

Why are those the prime factors of the number 756,324?

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 756,324

756,324
Factor Arrows
2378,162
Factor Arrows
2189,081
Factor Arrows
363,027
Factor Arrows
321,009
Factor Arrows
37,003
Factor Arrows
47149

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, 47, 149

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 3 x 47 x 149 = 756,324

This can also be written as 22 x 33 x 471 x 1491 = 756,324

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


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