Q: What are the prime factors of the number 342,302,220?

 A: 2, 3, 5, 13, 48761

Why are those the prime factors of the number 342,302,220?

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 342,302,220

342,302,220
Factor Arrows
2171,151,110
Factor Arrows
285,575,555
Factor Arrows
328,525,185
Factor Arrows
39,508,395
Factor Arrows
33,169,465
Factor Arrows
5633,893
Factor Arrows
1348,761

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, 48761

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 3 x 5 x 13 x 48,761 = 342,302,220

This can also be written as 22 x 33 x 51 x 131 x 48,7611 = 342,302,220

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


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