Q: What are the prime factors of the number 277,622,320?

 A: 2, 5, 191, 18169

Why are those the prime factors of the number 277,622,320?

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 277,622,320

277,622,320
Factor Arrows
2138,811,160
Factor Arrows
269,405,580
Factor Arrows
234,702,790
Factor Arrows
217,351,395
Factor Arrows
53,470,279
Factor Arrows
19118,169

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, 191, 18169

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 191 x 18,169 = 277,622,320

This can also be written as 24 x 51 x 1911 x 18,1691 = 277,622,320

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


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