Q: What are the prime factors of the number 278,351,010?

 A: 2, 3, 5, 7, 441827

Why are those the prime factors of the number 278,351,010?

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 278,351,010

278,351,010
Factor Arrows
2139,175,505
Factor Arrows
346,391,835
Factor Arrows
315,463,945
Factor Arrows
53,092,789
Factor Arrows
7441,827

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, 441827

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 5 x 7 x 441,827 = 278,351,010

This can also be written as 21 x 32 x 51 x 71 x 441,8271 = 278,351,010

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


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