Q: What are the prime factors of the number 581,127,650?

 A: 2, 5, 157, 181, 409

Why are those the prime factors of the number 581,127,650?

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 581,127,650

581,127,650
Factor Arrows
2290,563,825
Factor Arrows
558,112,765
Factor Arrows
511,622,553
Factor Arrows
15774,029
Factor Arrows
181409

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, 157, 181, 409

We can check our work by multiplying all of the prime factors together: 2 x 5 x 5 x 157 x 181 x 409 = 581,127,650

This can also be written as 21 x 52 x 1571 x 1811 x 4091 = 581,127,650

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


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