Q: What are the prime factors of the number 300,221,220?

 A: 2, 3, 5, 13, 151, 2549

Why are those the prime factors of the number 300,221,220?

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 300,221,220

300,221,220
Factor Arrows
2150,110,610
Factor Arrows
275,055,305
Factor Arrows
325,018,435
Factor Arrows
55,003,687
Factor Arrows
13384,899
Factor Arrows
1512,549

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, 5, 13, 151, 2549

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 13 x 151 x 2,549 = 300,221,220

This can also be written as 22 x 31 x 51 x 131 x 1511 x 2,5491 = 300,221,220

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


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