Q: What are the prime factors of the number 15,877,296?

 A: 2, 3, 12251

Why are those the prime factors of the number 15,877,296?

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 15,877,296

15,877,296
Factor Arrows
27,938,648
Factor Arrows
23,969,324
Factor Arrows
21,984,662
Factor Arrows
2992,331
Factor Arrows
3330,777
Factor Arrows
3110,259
Factor Arrows
336,753
Factor Arrows
312,251

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, 12251

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 3 x 3 x 12,251 = 15,877,296

This can also be written as 24 x 34 x 12,2511 = 15,877,296

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


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