Q: What are the prime factors of the number 52,705,100?

 A: 2, 5, 7, 17, 43, 103

Why are those the prime factors of the number 52,705,100?

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 52,705,100

52,705,100
Factor Arrows
226,352,550
Factor Arrows
213,176,275
Factor Arrows
52,635,255
Factor Arrows
5527,051
Factor Arrows
775,293
Factor Arrows
174,429
Factor Arrows
43103

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, 5, 7, 17, 43, 103

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 5 x 7 x 17 x 43 x 103 = 52,705,100

This can also be written as 22 x 52 x 71 x 171 x 431 x 1031 = 52,705,100

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


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