Q: What are the prime factors of the number 419,360?

 A: 2, 5, 2621

Why are those the prime factors of the number 419,360?

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 419,360

419,360
Factor Arrows
2209,680
Factor Arrows
2104,840
Factor Arrows
252,420
Factor Arrows
226,210
Factor Arrows
213,105
Factor Arrows
52,621

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, 2621

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 5 x 2,621 = 419,360

This can also be written as 25 x 51 x 2,6211 = 419,360

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


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