Q: What are the prime factors of the number 213,313,023?

 A: 3, 7, 11, 43973

Why are those the prime factors of the number 213,313,023?

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 213,313,023

213,313,023
Factor Arrows
371,104,341
Factor Arrows
323,701,447
Factor Arrows
73,385,921
Factor Arrows
7483,703
Factor Arrows
1143,973

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, 11, 43973

We can check our work by multiplying all of the prime factors together: 3 x 3 x 7 x 7 x 11 x 43,973 = 213,313,023

This can also be written as 32 x 72 x 111 x 43,9731 = 213,313,023

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


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