Q: What are the prime factors of the number 123,134,650?

 A: 2, 5, 83, 29671

Why are those the prime factors of the number 123,134,650?

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 123,134,650

123,134,650
Factor Arrows
261,567,325
Factor Arrows
512,313,465
Factor Arrows
52,462,693
Factor Arrows
8329,671

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, 83, 29671

We can check our work by multiplying all of the prime factors together: 2 x 5 x 5 x 83 x 29,671 = 123,134,650

This can also be written as 21 x 52 x 831 x 29,6711 = 123,134,650

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


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