Q: What are the prime factors of the number 461,120?

 A: 2, 5, 11, 131

Why are those the prime factors of the number 461,120?

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 461,120

461,120
Factor Arrows
2230,560
Factor Arrows
2115,280
Factor Arrows
257,640
Factor Arrows
228,820
Factor Arrows
214,410
Factor Arrows
27,205
Factor Arrows
51,441
Factor Arrows
11131

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, 11, 131

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 5 x 11 x 131 = 461,120

This can also be written as 26 x 51 x 111 x 1311 = 461,120

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


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