Q: What are the prime factors of the number 1,565,784?

 A: 2, 3, 11, 659

Why are those the prime factors of the number 1,565,784?

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 1,565,784

1,565,784
Factor Arrows
2782,892
Factor Arrows
2391,446
Factor Arrows
2195,723
Factor Arrows
365,241
Factor Arrows
321,747
Factor Arrows
37,249
Factor Arrows
11659

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, 11, 659

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 3 x 11 x 659 = 1,565,784

This can also be written as 23 x 33 x 111 x 6591 = 1,565,784

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


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