Q: What are the prime factors of the number 342,230,220?

 A: 2, 3, 5, 997, 1907

Why are those the prime factors of the number 342,230,220?

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 342,230,220

342,230,220
Factor Arrows
2171,115,110
Factor Arrows
285,557,555
Factor Arrows
328,519,185
Factor Arrows
39,506,395
Factor Arrows
51,901,279
Factor Arrows
9971,907

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, 997, 1907

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 5 x 997 x 1,907 = 342,230,220

This can also be written as 22 x 32 x 51 x 9971 x 1,9071 = 342,230,220

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


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