Q: What are the prime factors of the number 216,344,760?

 A: 2, 3, 5, 47, 89, 431

Why are those the prime factors of the number 216,344,760?

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 216,344,760

216,344,760
Factor Arrows
2108,172,380
Factor Arrows
254,086,190
Factor Arrows
227,043,095
Factor Arrows
39,014,365
Factor Arrows
51,802,873
Factor Arrows
4738,359
Factor Arrows
89431

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, 47, 89, 431

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 5 x 47 x 89 x 431 = 216,344,760

This can also be written as 23 x 31 x 51 x 471 x 891 x 4311 = 216,344,760

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


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