Q: What are the prime factors of the number 1,718,784?

 A: 2, 3, 373

Why are those the prime factors of the number 1,718,784?

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 1,718,784

1,718,784
Factor Arrows
2859,392
Factor Arrows
2429,696
Factor Arrows
2214,848
Factor Arrows
2107,424
Factor Arrows
253,712
Factor Arrows
226,856
Factor Arrows
213,428
Factor Arrows
26,714
Factor Arrows
23,357
Factor Arrows
31,119
Factor Arrows
3373

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, 373

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 3 x 3 x 373 = 1,718,784

This can also be written as 29 x 32 x 3731 = 1,718,784

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


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