Q: What are the prime factors of the number 323,000,240?

 A: 2, 5, 1579, 2557

Why are those the prime factors of the number 323,000,240?

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 323,000,240

323,000,240
Factor Arrows
2161,500,120
Factor Arrows
280,750,060
Factor Arrows
240,375,030
Factor Arrows
220,187,515
Factor Arrows
54,037,503
Factor Arrows
1,5792,557

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, 5, 1579, 2557

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 1,579 x 2,557 = 323,000,240

This can also be written as 24 x 51 x 1,5791 x 2,5571 = 323,000,240

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


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