Q: What are the prime factors of the number 55,383,872?

 A: 2, 269, 3217

Why are those the prime factors of the number 55,383,872?

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 55,383,872

55,383,872
Factor Arrows
227,691,936
Factor Arrows
213,845,968
Factor Arrows
26,922,984
Factor Arrows
23,461,492
Factor Arrows
21,730,746
Factor Arrows
2865,373
Factor Arrows
2693,217

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, 269, 3217

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 269 x 3,217 = 55,383,872

This can also be written as 26 x 2691 x 3,2171 = 55,383,872

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


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