Q: What are the prime factors of the number 523,211,130?

 A: 2, 3, 5, 13, 23, 6481

Why are those the prime factors of the number 523,211,130?

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 523,211,130

523,211,130
Factor Arrows
2261,605,565
Factor Arrows
387,201,855
Factor Arrows
329,067,285
Factor Arrows
39,689,095
Factor Arrows
51,937,819
Factor Arrows
13149,063
Factor Arrows
236,481

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, 13, 23, 6481

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 5 x 13 x 23 x 6,481 = 523,211,130

This can also be written as 21 x 33 x 51 x 131 x 231 x 6,4811 = 523,211,130

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


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