Q: What are the prime factors of the number 556,145,152?

 A: 2, 23, 83, 569

Why are those the prime factors of the number 556,145,152?

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 556,145,152

556,145,152
Factor Arrows
2278,072,576
Factor Arrows
2139,036,288
Factor Arrows
269,518,144
Factor Arrows
234,759,072
Factor Arrows
217,379,536
Factor Arrows
28,689,768
Factor Arrows
24,344,884
Factor Arrows
22,172,442
Factor Arrows
21,086,221
Factor Arrows
2347,227
Factor Arrows
83569

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, 23, 83, 569

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 23 x 83 x 569 = 556,145,152

This can also be written as 29 x 231 x 831 x 5691 = 556,145,152

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


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