Q: What are the prime factors of the number 442,064,220?

 A: 2, 3, 5, 13, 439, 1291

Why are those the prime factors of the number 442,064,220?

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 442,064,220

442,064,220
Factor Arrows
2221,032,110
Factor Arrows
2110,516,055
Factor Arrows
336,838,685
Factor Arrows
57,367,737
Factor Arrows
13566,749
Factor Arrows
4391,291

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, 439, 1291

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 13 x 439 x 1,291 = 442,064,220

This can also be written as 22 x 31 x 51 x 131 x 4391 x 1,2911 = 442,064,220

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


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