Q: What are the prime factors of the number 5,199,420?

 A: 2, 3, 5, 193, 449

Why are those the prime factors of the number 5,199,420?

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 5,199,420

5,199,420
Factor Arrows
22,599,710
Factor Arrows
21,299,855
Factor Arrows
3433,285
Factor Arrows
586,657
Factor Arrows
193449

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, 193, 449

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 193 x 449 = 5,199,420

This can also be written as 22 x 31 x 51 x 1931 x 4491 = 5,199,420

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


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