Q: What are the prime factors of the number 576,240,420?

 A: 2, 3, 5, 7, 43, 31907

Why are those the prime factors of the number 576,240,420?

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 576,240,420

576,240,420
Factor Arrows
2288,120,210
Factor Arrows
2144,060,105
Factor Arrows
348,020,035
Factor Arrows
59,604,007
Factor Arrows
71,372,001
Factor Arrows
4331,907

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, 7, 43, 31907

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 7 x 43 x 31,907 = 576,240,420

This can also be written as 22 x 31 x 51 x 71 x 431 x 31,9071 = 576,240,420

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


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