Q: What are the prime factors of the number 1,672,944?

 A: 2, 3, 7, 13, 383

Why are those the prime factors of the number 1,672,944?

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 1,672,944

1,672,944
Factor Arrows
2836,472
Factor Arrows
2418,236
Factor Arrows
2209,118
Factor Arrows
2104,559
Factor Arrows
334,853
Factor Arrows
74,979
Factor Arrows
13383

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, 7, 13, 383

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 7 x 13 x 383 = 1,672,944

This can also be written as 24 x 31 x 71 x 131 x 3831 = 1,672,944

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


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