Q: What are the prime factors of the number 105,686,448?

 A: 2, 3, 7, 314543

Why are those the prime factors of the number 105,686,448?

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 105,686,448

105,686,448
Factor Arrows
252,843,224
Factor Arrows
226,421,612
Factor Arrows
213,210,806
Factor Arrows
26,605,403
Factor Arrows
32,201,801
Factor Arrows
7314,543

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, 7, 314543

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 7 x 314,543 = 105,686,448

This can also be written as 24 x 31 x 71 x 314,5431 = 105,686,448

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


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