Q: What are the prime factors of the number 130,123,104?

 A: 2, 3, 1355449

Why are those the prime factors of the number 130,123,104?

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 130,123,104

130,123,104
Factor Arrows
265,061,552
Factor Arrows
232,530,776
Factor Arrows
216,265,388
Factor Arrows
28,132,694
Factor Arrows
24,066,347
Factor Arrows
31,355,449

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, 1355449

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 1,355,449 = 130,123,104

This can also be written as 25 x 31 x 1,355,4491 = 130,123,104

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


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