Q: What are the prime factors of the number 19,201,250?

 A: 2, 5, 15361

Why are those the prime factors of the number 19,201,250?

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 19,201,250

19,201,250
Factor Arrows
29,600,625
Factor Arrows
51,920,125
Factor Arrows
5384,025
Factor Arrows
576,805
Factor Arrows
515,361

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, 15361

We can check our work by multiplying all of the prime factors together: 2 x 5 x 5 x 5 x 5 x 15,361 = 19,201,250

This can also be written as 21 x 54 x 15,3611 = 19,201,250

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


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