Q: What are the prime factors of the number 51,705,344?

 A: 2, 100987

Why are those the prime factors of the number 51,705,344?

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 51,705,344

51,705,344
Factor Arrows
225,852,672
Factor Arrows
212,926,336
Factor Arrows
26,463,168
Factor Arrows
23,231,584
Factor Arrows
21,615,792
Factor Arrows
2807,896
Factor Arrows
2403,948
Factor Arrows
2201,974
Factor Arrows
2100,987

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, 100987

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 100,987 = 51,705,344

This can also be written as 29 x 100,9871 = 51,705,344

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


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