Q: What are the prime factors of the number 213,223,312?

 A: 2, 29, 193, 2381

Why are those the prime factors of the number 213,223,312?

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 213,223,312

213,223,312
Factor Arrows
2106,611,656
Factor Arrows
253,305,828
Factor Arrows
226,652,914
Factor Arrows
213,326,457
Factor Arrows
29459,533
Factor Arrows
1932,381

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, 29, 193, 2381

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 29 x 193 x 2,381 = 213,223,312

This can also be written as 24 x 291 x 1931 x 2,3811 = 213,223,312

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


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