Q: What are the prime factors of the number 213,423,255?

 A: 3, 5, 269, 653

Why are those the prime factors of the number 213,423,255?

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 213,423,255

213,423,255
Factor Arrows
371,141,085
Factor Arrows
323,713,695
Factor Arrows
37,904,565
Factor Arrows
32,634,855
Factor Arrows
3878,285
Factor Arrows
5175,657
Factor Arrows
269653

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, 269, 653

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 3 x 5 x 269 x 653 = 213,423,255

This can also be written as 35 x 51 x 2691 x 6531 = 213,423,255

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


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