Q: What are the prime factors of the number 53,206,400?

 A: 2, 5, 13, 1279

Why are those the prime factors of the number 53,206,400?

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 53,206,400

53,206,400
Factor Arrows
226,603,200
Factor Arrows
213,301,600
Factor Arrows
26,650,800
Factor Arrows
23,325,400
Factor Arrows
21,662,700
Factor Arrows
2831,350
Factor Arrows
2415,675
Factor Arrows
583,135
Factor Arrows
516,627
Factor Arrows
131,279

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, 13, 1279

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 5 x 5 x 13 x 1,279 = 53,206,400

This can also be written as 27 x 52 x 131 x 1,2791 = 53,206,400

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


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