Q: What are the prime factors of the number 3,932,208?

 A: 2, 3, 7, 47, 83

Why are those the prime factors of the number 3,932,208?

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 3,932,208

3,932,208
Factor Arrows
21,966,104
Factor Arrows
2983,052
Factor Arrows
2491,526
Factor Arrows
2245,763
Factor Arrows
381,921
Factor Arrows
327,307
Factor Arrows
73,901
Factor Arrows
4783

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, 47, 83

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 7 x 47 x 83 = 3,932,208

This can also be written as 24 x 32 x 71 x 471 x 831 = 3,932,208

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


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