Q: What are the prime factors of the number 277,266,780?

 A: 2, 3, 5, 7, 73351

Why are those the prime factors of the number 277,266,780?

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 277,266,780

277,266,780
Factor Arrows
2138,633,390
Factor Arrows
269,316,695
Factor Arrows
323,105,565
Factor Arrows
37,701,855
Factor Arrows
32,567,285
Factor Arrows
5513,457
Factor Arrows
773,351

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, 7, 73351

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 3 x 5 x 7 x 73,351 = 277,266,780

This can also be written as 22 x 33 x 51 x 71 x 73,3511 = 277,266,780

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


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