Q: What are the prime factors of the number 2,085,760?

 A: 2, 5, 3259

Why are those the prime factors of the number 2,085,760?

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 2,085,760

2,085,760
Factor Arrows
21,042,880
Factor Arrows
2521,440
Factor Arrows
2260,720
Factor Arrows
2130,360
Factor Arrows
265,180
Factor Arrows
232,590
Factor Arrows
216,295
Factor Arrows
53,259

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, 5, 3259

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 5 x 3,259 = 2,085,760

This can also be written as 27 x 51 x 3,2591 = 2,085,760

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


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