Q: What are the prime factors of the number 19,050,850?

 A: 2, 5, 7, 13, 53, 79

Why are those the prime factors of the number 19,050,850?

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 19,050,850

19,050,850
Factor Arrows
29,525,425
Factor Arrows
51,905,085
Factor Arrows
5381,017
Factor Arrows
754,431
Factor Arrows
134,187
Factor Arrows
5379

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, 13, 53, 79

We can check our work by multiplying all of the prime factors together: 2 x 5 x 5 x 7 x 13 x 53 x 79 = 19,050,850

This can also be written as 21 x 52 x 71 x 131 x 531 x 791 = 19,050,850

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


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