Q: What are the prime factors of the number 435,651,021?

 A: 3, 13, 29, 127, 337

Why are those the prime factors of the number 435,651,021?

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 435,651,021

435,651,021
Factor Arrows
3145,217,007
Factor Arrows
348,405,669
Factor Arrows
316,135,223
Factor Arrows
131,241,171
Factor Arrows
2942,799
Factor Arrows
127337

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, 29, 127, 337

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 13 x 29 x 127 x 337 = 435,651,021

This can also be written as 33 x 131 x 291 x 1271 x 3371 = 435,651,021

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


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