Q: What are the prime factors of the number 152,543,061?

 A: 3, 11, 23, 137, 163

Why are those the prime factors of the number 152,543,061?

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 152,543,061

152,543,061
Factor Arrows
350,847,687
Factor Arrows
316,949,229
Factor Arrows
35,649,743
Factor Arrows
11513,613
Factor Arrows
2322,331
Factor Arrows
137163

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:

3, 11, 23, 137, 163

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 11 x 23 x 137 x 163 = 152,543,061

This can also be written as 33 x 111 x 231 x 1371 x 1631 = 152,543,061

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


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