Q: What are the prime factors of the number 123,333,332?

 A: 2, 19, 53, 67, 457

Why are those the prime factors of the number 123,333,332?

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 123,333,332

123,333,332
Factor Arrows
261,666,666
Factor Arrows
230,833,333
Factor Arrows
191,622,807
Factor Arrows
5330,619
Factor Arrows
67457

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, 19, 53, 67, 457

We can check our work by multiplying all of the prime factors together: 2 x 2 x 19 x 53 x 67 x 457 = 123,333,332

This can also be written as 22 x 191 x 531 x 671 x 4571 = 123,333,332

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


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