Q: What are the prime factors of the number 531,145,444?

 A: 2, 31, 157, 27283

Why are those the prime factors of the number 531,145,444?

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 531,145,444

531,145,444
Factor Arrows
2265,572,722
Factor Arrows
2132,786,361
Factor Arrows
314,283,431
Factor Arrows
15727,283

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, 31, 157, 27283

We can check our work by multiplying all of the prime factors together: 2 x 2 x 31 x 157 x 27,283 = 531,145,444

This can also be written as 22 x 311 x 1571 x 27,2831 = 531,145,444

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


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