Q: What are the prime factors of the number 243,055,312?

 A: 2, 173, 277, 317

Why are those the prime factors of the number 243,055,312?

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 243,055,312

243,055,312
Factor Arrows
2121,527,656
Factor Arrows
260,763,828
Factor Arrows
230,381,914
Factor Arrows
215,190,957
Factor Arrows
17387,809
Factor Arrows
277317

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, 173, 277, 317

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 173 x 277 x 317 = 243,055,312

This can also be written as 24 x 1731 x 2771 x 3171 = 243,055,312

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


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