Q: What are the prime factors of the number 55,156,160?

 A: 2, 5, 17, 10139

Why are those the prime factors of the number 55,156,160?

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 55,156,160

55,156,160
Factor Arrows
227,578,080
Factor Arrows
213,789,040
Factor Arrows
26,894,520
Factor Arrows
23,447,260
Factor Arrows
21,723,630
Factor Arrows
2861,815
Factor Arrows
5172,363
Factor Arrows
1710,139

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, 5, 17, 10139

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 5 x 17 x 10,139 = 55,156,160

This can also be written as 26 x 51 x 171 x 10,1391 = 55,156,160

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


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