Q: What are the prime factors of the number 863,406?

 A: 2, 3, 59, 271

Why are those the prime factors of the number 863,406?

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 863,406

863,406
Factor Arrows
2431,703
Factor Arrows
3143,901
Factor Arrows
347,967
Factor Arrows
315,989
Factor Arrows
59271

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, 59, 271

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 59 x 271 = 863,406

This can also be written as 21 x 33 x 591 x 2711 = 863,406

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


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