Q: What are the prime factors of the number 31,244,040?

 A: 2, 3, 5, 59, 1471

Why are those the prime factors of the number 31,244,040?

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 31,244,040

31,244,040
Factor Arrows
215,622,020
Factor Arrows
27,811,010
Factor Arrows
23,905,505
Factor Arrows
31,301,835
Factor Arrows
3433,945
Factor Arrows
586,789
Factor Arrows
591,471

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, 59, 1471

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 5 x 59 x 1,471 = 31,244,040

This can also be written as 23 x 32 x 51 x 591 x 1,4711 = 31,244,040

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


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