Q: What are the prime factors of the number 34,121,220?

 A: 2, 3, 5, 7, 137, 593

Why are those the prime factors of the number 34,121,220?

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 34,121,220

34,121,220
Factor Arrows
217,060,610
Factor Arrows
28,530,305
Factor Arrows
32,843,435
Factor Arrows
5568,687
Factor Arrows
781,241
Factor Arrows
137593

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, 7, 137, 593

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 7 x 137 x 593 = 34,121,220

This can also be written as 22 x 31 x 51 x 71 x 1371 x 5931 = 34,121,220

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


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