Q: What are the prime factors of the number 134,161,225?

 A: 5, 11, 41, 73, 163

Why are those the prime factors of the number 134,161,225?

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 134,161,225

134,161,225
Factor Arrows
526,832,245
Factor Arrows
55,366,449
Factor Arrows
11487,859
Factor Arrows
4111,899
Factor Arrows
73163

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:

5, 11, 41, 73, 163

We can check our work by multiplying all of the prime factors together: 5 x 5 x 11 x 41 x 73 x 163 = 134,161,225

This can also be written as 52 x 111 x 411 x 731 x 1631 = 134,161,225

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


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