Q: What are the prime factors of the number 121,004,032?

 A: 2, 14771

Why are those the prime factors of the number 121,004,032?

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 121,004,032

121,004,032
Factor Arrows
260,502,016
Factor Arrows
230,251,008
Factor Arrows
215,125,504
Factor Arrows
27,562,752
Factor Arrows
23,781,376
Factor Arrows
21,890,688
Factor Arrows
2945,344
Factor Arrows
2472,672
Factor Arrows
2236,336
Factor Arrows
2118,168
Factor Arrows
259,084
Factor Arrows
229,542
Factor Arrows
214,771

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, 14771

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 2 x 2 x 2 x 2 x 2 x 14,771 = 121,004,032

This can also be written as 213 x 14,7711 = 121,004,032

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


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