Q: What are the prime factors of the number 243,301,023?

 A: 3, 7, 19, 9679

Why are those the prime factors of the number 243,301,023?

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 243,301,023

243,301,023
Factor Arrows
381,100,341
Factor Arrows
327,033,447
Factor Arrows
39,011,149
Factor Arrows
71,287,307
Factor Arrows
7183,901
Factor Arrows
199,679

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:

3, 7, 19, 9679

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 7 x 7 x 19 x 9,679 = 243,301,023

This can also be written as 33 x 72 x 191 x 9,6791 = 243,301,023

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


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