Q: What are the prime factors of the number 105,551,532?

 A: 2, 3, 29, 67, 503

Why are those the prime factors of the number 105,551,532?

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 105,551,532

105,551,532
Factor Arrows
252,775,766
Factor Arrows
226,387,883
Factor Arrows
38,795,961
Factor Arrows
32,931,987
Factor Arrows
3977,329
Factor Arrows
2933,701
Factor Arrows
67503

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, 29, 67, 503

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 3 x 29 x 67 x 503 = 105,551,532

This can also be written as 22 x 33 x 291 x 671 x 5031 = 105,551,532

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


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