Q: What are the prime factors of the number 9,603,972?

 A: 2, 3, 7, 23, 1657

Why are those the prime factors of the number 9,603,972?

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 9,603,972

9,603,972
Factor Arrows
24,801,986
Factor Arrows
22,400,993
Factor Arrows
3800,331
Factor Arrows
3266,777
Factor Arrows
738,111
Factor Arrows
231,657

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, 7, 23, 1657

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 7 x 23 x 1,657 = 9,603,972

This can also be written as 22 x 32 x 71 x 231 x 1,6571 = 9,603,972

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


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