Q: What are the prime factors of the number 122,114,304?

 A: 2, 3, 13, 151

Why are those the prime factors of the number 122,114,304?

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 122,114,304

122,114,304
Factor Arrows
261,057,152
Factor Arrows
230,528,576
Factor Arrows
215,264,288
Factor Arrows
27,632,144
Factor Arrows
23,816,072
Factor Arrows
21,908,036
Factor Arrows
2954,018
Factor Arrows
2477,009
Factor Arrows
3159,003
Factor Arrows
353,001
Factor Arrows
317,667
Factor Arrows
35,889
Factor Arrows
31,963
Factor Arrows
13151

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, 3, 13, 151

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 2 x 2 x 3 x 3 x 3 x 3 x 3 x 13 x 151 = 122,114,304

This can also be written as 28 x 35 x 131 x 1511 = 122,114,304

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


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