Q: What are the prime factors of the number 1,270,080?

 A: 2, 3, 5, 7

Why are those the prime factors of the number 1,270,080?

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 1,270,080

1,270,080
Factor Arrows
2635,040
Factor Arrows
2317,520
Factor Arrows
2158,760
Factor Arrows
279,380
Factor Arrows
239,690
Factor Arrows
219,845
Factor Arrows
36,615
Factor Arrows
32,205
Factor Arrows
3735
Factor Arrows
3245
Factor Arrows
549
Factor Arrows
77

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

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 3 x 3 x 3 x 3 x 5 x 7 x 7 = 1,270,080

This can also be written as 26 x 34 x 51 x 72 = 1,270,080

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


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