Q: What are the prime factors of the number 105,315,066?

 A: 2, 3, 29, 773

Why are those the prime factors of the number 105,315,066?

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 105,315,066

105,315,066
Factor Arrows
252,657,533
Factor Arrows
317,552,511
Factor Arrows
35,850,837
Factor Arrows
31,950,279
Factor Arrows
3650,093
Factor Arrows
2922,417
Factor Arrows
29773

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, 773

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 3 x 29 x 29 x 773 = 105,315,066

This can also be written as 21 x 34 x 292 x 7731 = 105,315,066

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


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