Q: What are the prime factors of the number 908,960?

 A: 2, 5, 13, 19, 23

Why are those the prime factors of the number 908,960?

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 908,960

908,960
Factor Arrows
2454,480
Factor Arrows
2227,240
Factor Arrows
2113,620
Factor Arrows
256,810
Factor Arrows
228,405
Factor Arrows
55,681
Factor Arrows
13437
Factor Arrows
1923

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, 5, 13, 19, 23

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 5 x 13 x 19 x 23 = 908,960

This can also be written as 25 x 51 x 131 x 191 x 231 = 908,960

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


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