Q: What are the prime factors of the number 12,765,504?

 A: 2, 3, 17, 3911

Why are those the prime factors of the number 12,765,504?

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 12,765,504

12,765,504
Factor Arrows
26,382,752
Factor Arrows
23,191,376
Factor Arrows
21,595,688
Factor Arrows
2797,844
Factor Arrows
2398,922
Factor Arrows
2199,461
Factor Arrows
366,487
Factor Arrows
173,911

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, 17, 3911

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 17 x 3,911 = 12,765,504

This can also be written as 26 x 31 x 171 x 3,9111 = 12,765,504

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


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