Q: What are the prime factors of the number 324,011,220?

 A: 2, 3, 5, 13, 37, 103, 109

Why are those the prime factors of the number 324,011,220?

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 324,011,220

324,011,220
Factor Arrows
2162,005,610
Factor Arrows
281,002,805
Factor Arrows
327,000,935
Factor Arrows
55,400,187
Factor Arrows
13415,399
Factor Arrows
3711,227
Factor Arrows
103109

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, 5, 13, 37, 103, 109

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 13 x 37 x 103 x 109 = 324,011,220

This can also be written as 22 x 31 x 51 x 131 x 371 x 1031 x 1091 = 324,011,220

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


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