Q: What are the prime factors of the number 571,440?

 A: 2, 3, 5, 2381

Why are those the prime factors of the number 571,440?

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 571,440

571,440
Factor Arrows
2285,720
Factor Arrows
2142,860
Factor Arrows
271,430
Factor Arrows
235,715
Factor Arrows
311,905
Factor Arrows
52,381

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, 2381

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 5 x 2,381 = 571,440

This can also be written as 24 x 31 x 51 x 2,3811 = 571,440

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


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