Q: What are the prime factors of the number 130,302,432?

 A: 2, 3, 13, 1289

Why are those the prime factors of the number 130,302,432?

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 130,302,432

130,302,432
Factor Arrows
265,151,216
Factor Arrows
232,575,608
Factor Arrows
216,287,804
Factor Arrows
28,143,902
Factor Arrows
24,071,951
Factor Arrows
31,357,317
Factor Arrows
3452,439
Factor Arrows
3150,813
Factor Arrows
350,271
Factor Arrows
316,757
Factor Arrows
131,289

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, 13, 1289

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 3 x 3 x 3 x 3 x 13 x 1,289 = 130,302,432

This can also be written as 25 x 35 x 131 x 1,2891 = 130,302,432

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


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