Q: What are the prime factors of the number 163,231,341?

 A: 3, 7, 13, 461, 1297

Why are those the prime factors of the number 163,231,341?

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 163,231,341

163,231,341
Factor Arrows
354,410,447
Factor Arrows
77,772,921
Factor Arrows
13597,917
Factor Arrows
4611,297

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, 7, 13, 461, 1297

We can check our work by multiplying all of the prime factors together: 3 x 7 x 13 x 461 x 1,297 = 163,231,341

This can also be written as 31 x 71 x 131 x 4611 x 1,2971 = 163,231,341

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


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