Q: What are the prime factors of the number 534,440?

 A: 2, 5, 31, 431

Why are those the prime factors of the number 534,440?

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 534,440

534,440
Factor Arrows
2267,220
Factor Arrows
2133,610
Factor Arrows
266,805
Factor Arrows
513,361
Factor Arrows
31431

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, 31, 431

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 5 x 31 x 431 = 534,440

This can also be written as 23 x 51 x 311 x 4311 = 534,440

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


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