Q: What are the prime factors of the number 25,447,932?

 A: 2, 3, 2909

Why are those the prime factors of the number 25,447,932?

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 25,447,932

25,447,932
Factor Arrows
212,723,966
Factor Arrows
26,361,983
Factor Arrows
32,120,661
Factor Arrows
3706,887
Factor Arrows
3235,629
Factor Arrows
378,543
Factor Arrows
326,181
Factor Arrows
38,727
Factor Arrows
32,909

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, 2909

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 3 x 3 x 3 x 3 x 3 x 2,909 = 25,447,932

This can also be written as 22 x 37 x 2,9091 = 25,447,932

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


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