Q: What are the prime factors of the number 32,420,358?

 A: 2, 3, 31, 107, 181

Why are those the prime factors of the number 32,420,358?

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 32,420,358

32,420,358
Factor Arrows
216,210,179
Factor Arrows
35,403,393
Factor Arrows
31,801,131
Factor Arrows
3600,377
Factor Arrows
3119,367
Factor Arrows
107181

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, 31, 107, 181

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 31 x 107 x 181 = 32,420,358

This can also be written as 21 x 33 x 311 x 1071 x 1811 = 32,420,358

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


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