Q: What are the prime factors of the number 19,658,350?

 A: 2, 5, 19, 20693

Why are those the prime factors of the number 19,658,350?

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 19,658,350

19,658,350
Factor Arrows
29,829,175
Factor Arrows
51,965,835
Factor Arrows
5393,167
Factor Arrows
1920,693

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, 19, 20693

We can check our work by multiplying all of the prime factors together: 2 x 5 x 5 x 19 x 20,693 = 19,658,350

This can also be written as 21 x 52 x 191 x 20,6931 = 19,658,350

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


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