Q: What are the prime factors of the number 1,625,504?

 A: 2, 79, 643

Why are those the prime factors of the number 1,625,504?

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 1,625,504

1,625,504
Factor Arrows
2812,752
Factor Arrows
2406,376
Factor Arrows
2203,188
Factor Arrows
2101,594
Factor Arrows
250,797
Factor Arrows
79643

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, 79, 643

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 79 x 643 = 1,625,504

This can also be written as 25 x 791 x 6431 = 1,625,504

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


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