Q: What are the prime factors of the number 200,312?

 A: 2, 7, 73

Why are those the prime factors of the number 200,312?

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 200,312

200,312
Factor Arrows
2100,156
Factor Arrows
250,078
Factor Arrows
225,039
Factor Arrows
73,577
Factor Arrows
7511
Factor Arrows
773

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, 7, 73

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 7 x 7 x 7 x 73 = 200,312

This can also be written as 23 x 73 x 731 = 200,312

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


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