Q: What are the prime factors of the number 243,313,424?

 A: 2, 149, 102061

Why are those the prime factors of the number 243,313,424?

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 243,313,424

243,313,424
Factor Arrows
2121,656,712
Factor Arrows
260,828,356
Factor Arrows
230,414,178
Factor Arrows
215,207,089
Factor Arrows
149102,061

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, 149, 102061

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 149 x 102,061 = 243,313,424

This can also be written as 24 x 1491 x 102,0611 = 243,313,424

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


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