Q: What are the prime factors of the number 242,341,120?

 A: 2, 5, 7, 17, 37, 43

Why are those the prime factors of the number 242,341,120?

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 242,341,120

242,341,120
Factor Arrows
2121,170,560
Factor Arrows
260,585,280
Factor Arrows
230,292,640
Factor Arrows
215,146,320
Factor Arrows
27,573,160
Factor Arrows
23,786,580
Factor Arrows
21,893,290
Factor Arrows
2946,645
Factor Arrows
5189,329
Factor Arrows
727,047
Factor Arrows
171,591
Factor Arrows
3743

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, 5, 7, 17, 37, 43

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 5 x 7 x 17 x 37 x 43 = 242,341,120

This can also be written as 28 x 51 x 71 x 171 x 371 x 431 = 242,341,120

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


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