Q: What are the prime factors of the number 1,717,872?

 A: 2, 3, 13, 2753

Why are those the prime factors of the number 1,717,872?

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 1,717,872

1,717,872
Factor Arrows
2858,936
Factor Arrows
2429,468
Factor Arrows
2214,734
Factor Arrows
2107,367
Factor Arrows
335,789
Factor Arrows
132,753

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, 13, 2753

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 13 x 2,753 = 1,717,872

This can also be written as 24 x 31 x 131 x 2,7531 = 1,717,872

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


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