Q: What are the prime factors of the number 12,886,544?

 A: 2, 11, 17, 59, 73

Why are those the prime factors of the number 12,886,544?

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 12,886,544

12,886,544
Factor Arrows
26,443,272
Factor Arrows
23,221,636
Factor Arrows
21,610,818
Factor Arrows
2805,409
Factor Arrows
1173,219
Factor Arrows
174,307
Factor Arrows
5973

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, 11, 17, 59, 73

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 11 x 17 x 59 x 73 = 12,886,544

This can also be written as 24 x 111 x 171 x 591 x 731 = 12,886,544

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


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