Q: What are the prime factors of the number 15,546,256?

 A: 2, 11, 19, 4649

Why are those the prime factors of the number 15,546,256?

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 15,546,256

15,546,256
Factor Arrows
27,773,128
Factor Arrows
23,886,564
Factor Arrows
21,943,282
Factor Arrows
2971,641
Factor Arrows
1188,331
Factor Arrows
194,649

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, 19, 4649

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 11 x 19 x 4,649 = 15,546,256

This can also be written as 24 x 111 x 191 x 4,6491 = 15,546,256

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


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