Q: What are the prime factors of the number 1,263,312?

 A: 2, 3, 31, 283

Why are those the prime factors of the number 1,263,312?

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 1,263,312

1,263,312
Factor Arrows
2631,656
Factor Arrows
2315,828
Factor Arrows
2157,914
Factor Arrows
278,957
Factor Arrows
326,319
Factor Arrows
38,773
Factor Arrows
31283

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, 3, 31, 283

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 31 x 283 = 1,263,312

This can also be written as 24 x 32 x 311 x 2831 = 1,263,312

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


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