Q: What are the prime factors of the number 130,221,456?

 A: 2, 3, 2712947

Why are those the prime factors of the number 130,221,456?

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 130,221,456

130,221,456
Factor Arrows
265,110,728
Factor Arrows
232,555,364
Factor Arrows
216,277,682
Factor Arrows
28,138,841
Factor Arrows
32,712,947

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, 2712947

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 2,712,947 = 130,221,456

This can also be written as 24 x 31 x 2,712,9471 = 130,221,456

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


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