Q: What are the prime factors of the number 163,206,045?

 A: 3, 5, 23, 137, 1151

Why are those the prime factors of the number 163,206,045?

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 163,206,045

163,206,045
Factor Arrows
354,402,015
Factor Arrows
318,134,005
Factor Arrows
53,626,801
Factor Arrows
23157,687
Factor Arrows
1371,151

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, 5, 23, 137, 1151

We can check our work by multiplying all of the prime factors together: 3 x 3 x 5 x 23 x 137 x 1,151 = 163,206,045

This can also be written as 32 x 51 x 231 x 1371 x 1,1511 = 163,206,045

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


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