Q: What are the prime factors of the number 243,784,849?

 A: 7, 11, 64613

Why are those the prime factors of the number 243,784,849?

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 243,784,849

243,784,849
Factor Arrows
734,826,407
Factor Arrows
74,975,201
Factor Arrows
7710,743
Factor Arrows
1164,613

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:

7, 11, 64613

We can check our work by multiplying all of the prime factors together: 7 x 7 x 7 x 11 x 64,613 = 243,784,849

This can also be written as 73 x 111 x 64,6131 = 243,784,849

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


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