Q: What are the prime factors of the number 216,425,469?

 A: 3, 13, 23, 37, 6521

Why are those the prime factors of the number 216,425,469?

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 216,425,469

216,425,469
Factor Arrows
372,141,823
Factor Arrows
135,549,371
Factor Arrows
23241,277
Factor Arrows
376,521

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, 13, 23, 37, 6521

We can check our work by multiplying all of the prime factors together: 3 x 13 x 23 x 37 x 6,521 = 216,425,469

This can also be written as 31 x 131 x 231 x 371 x 6,5211 = 216,425,469

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


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