Q: What are the prime factors of the number 111,067,770?

 A: 2, 3, 5, 11, 41, 8209

Why are those the prime factors of the number 111,067,770?

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 111,067,770

111,067,770
Factor Arrows
255,533,885
Factor Arrows
318,511,295
Factor Arrows
53,702,259
Factor Arrows
11336,569
Factor Arrows
418,209

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, 5, 11, 41, 8209

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 11 x 41 x 8,209 = 111,067,770

This can also be written as 21 x 31 x 51 x 111 x 411 x 8,2091 = 111,067,770

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


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