Q: What are the prime factors of the number 61,504,400?

 A: 2, 5, 179, 859

Why are those the prime factors of the number 61,504,400?

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 61,504,400

61,504,400
Factor Arrows
230,752,200
Factor Arrows
215,376,100
Factor Arrows
27,688,050
Factor Arrows
23,844,025
Factor Arrows
5768,805
Factor Arrows
5153,761
Factor Arrows
179859

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, 179, 859

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 5 x 179 x 859 = 61,504,400

This can also be written as 24 x 52 x 1791 x 8591 = 61,504,400

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


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