Q: What are the prime factors of the number 242,352,320?

 A: 2, 5, 7, 108193

Why are those the prime factors of the number 242,352,320?

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 242,352,320

242,352,320
Factor Arrows
2121,176,160
Factor Arrows
260,588,080
Factor Arrows
230,294,040
Factor Arrows
215,147,020
Factor Arrows
27,573,510
Factor Arrows
23,786,755
Factor Arrows
5757,351
Factor Arrows
7108,193

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, 108193

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 5 x 7 x 108,193 = 242,352,320

This can also be written as 26 x 51 x 71 x 108,1931 = 242,352,320

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


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