Q: What are the prime factors of the number 105,714,256?

 A: 2, 23, 103, 2789

Why are those the prime factors of the number 105,714,256?

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 105,714,256

105,714,256
Factor Arrows
252,857,128
Factor Arrows
226,428,564
Factor Arrows
213,214,282
Factor Arrows
26,607,141
Factor Arrows
23287,267
Factor Arrows
1032,789

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, 23, 103, 2789

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 23 x 103 x 2,789 = 105,714,256

This can also be written as 24 x 231 x 1031 x 2,7891 = 105,714,256

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


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