Q: What are the prime factors of the number 1,251,693?

 A: 3, 17, 101

Why are those the prime factors of the number 1,251,693?

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 1,251,693

1,251,693
Factor Arrows
3417,231
Factor Arrows
3139,077
Factor Arrows
346,359
Factor Arrows
315,453
Factor Arrows
35,151
Factor Arrows
31,717
Factor Arrows
17101

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, 17, 101

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 3 x 3 x 17 x 101 = 1,251,693

This can also be written as 36 x 171 x 1011 = 1,251,693

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


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