Q: What are the prime factors of the number 13,250,400?

 A: 2, 3, 5, 5521

Why are those the prime factors of the number 13,250,400?

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 13,250,400

13,250,400
Factor Arrows
26,625,200
Factor Arrows
23,312,600
Factor Arrows
21,656,300
Factor Arrows
2828,150
Factor Arrows
2414,075
Factor Arrows
3138,025
Factor Arrows
527,605
Factor Arrows
55,521

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, 5, 5521

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 5 x 5 x 5,521 = 13,250,400

This can also be written as 25 x 31 x 52 x 5,5211 = 13,250,400

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


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