Q: What are the prime factors of the number 11,258,880?

 A: 2, 3, 5, 733

Why are those the prime factors of the number 11,258,880?

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 11,258,880

11,258,880
Factor Arrows
25,629,440
Factor Arrows
22,814,720
Factor Arrows
21,407,360
Factor Arrows
2703,680
Factor Arrows
2351,840
Factor Arrows
2175,920
Factor Arrows
287,960
Factor Arrows
243,980
Factor Arrows
221,990
Factor Arrows
210,995
Factor Arrows
33,665
Factor Arrows
5733

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, 733

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 3 x 5 x 733 = 11,258,880

This can also be written as 210 x 31 x 51 x 7331 = 11,258,880

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


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