Q: What are the prime factors of the number 3,790,080?

 A: 2, 3, 5, 7, 47

Why are those the prime factors of the number 3,790,080?

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 3,790,080

3,790,080
Factor Arrows
21,895,040
Factor Arrows
2947,520
Factor Arrows
2473,760
Factor Arrows
2236,880
Factor Arrows
2118,440
Factor Arrows
259,220
Factor Arrows
229,610
Factor Arrows
214,805
Factor Arrows
34,935
Factor Arrows
31,645
Factor Arrows
5329
Factor Arrows
747

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, 5, 7, 47

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 2 x 3 x 3 x 5 x 7 x 47 = 3,790,080

This can also be written as 28 x 32 x 51 x 71 x 471 = 3,790,080

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


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