Q: What are the prime factors of the number 814,251,256?

 A: 2, 7, 13, 103, 10859

Why are those the prime factors of the number 814,251,256?

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 814,251,256

814,251,256
Factor Arrows
2407,125,628
Factor Arrows
2203,562,814
Factor Arrows
2101,781,407
Factor Arrows
714,540,201
Factor Arrows
131,118,477
Factor Arrows
10310,859

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, 7, 13, 103, 10859

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 7 x 13 x 103 x 10,859 = 814,251,256

This can also be written as 23 x 71 x 131 x 1031 x 10,8591 = 814,251,256

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


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