Q: What are the prime factors of the number 1,675,648?

 A: 2, 13, 19, 53

Why are those the prime factors of the number 1,675,648?

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 1,675,648

1,675,648
Factor Arrows
2837,824
Factor Arrows
2418,912
Factor Arrows
2209,456
Factor Arrows
2104,728
Factor Arrows
252,364
Factor Arrows
226,182
Factor Arrows
213,091
Factor Arrows
131,007
Factor Arrows
1953

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, 13, 19, 53

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 13 x 19 x 53 = 1,675,648

This can also be written as 27 x 131 x 191 x 531 = 1,675,648

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


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