Q: What are the prime factors of the number 277,788,860?

 A: 2, 5, 643, 21601

Why are those the prime factors of the number 277,788,860?

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 277,788,860

277,788,860
Factor Arrows
2138,894,430
Factor Arrows
269,447,215
Factor Arrows
513,889,443
Factor Arrows
64321,601

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, 643, 21601

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 643 x 21,601 = 277,788,860

This can also be written as 22 x 51 x 6431 x 21,6011 = 277,788,860

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


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