Q: What are the prime factors of the number 531,011,235?

 A: 3, 5, 17, 23, 37, 2447

Why are those the prime factors of the number 531,011,235?

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 531,011,235

531,011,235
Factor Arrows
3177,003,745
Factor Arrows
535,400,749
Factor Arrows
172,082,397
Factor Arrows
2390,539
Factor Arrows
372,447

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:

3, 5, 17, 23, 37, 2447

We can check our work by multiplying all of the prime factors together: 3 x 5 x 17 x 23 x 37 x 2,447 = 531,011,235

This can also be written as 31 x 51 x 171 x 231 x 371 x 2,4471 = 531,011,235

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


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