Q: What are the prime factors of the number 868,265,310?

 A: 2, 3, 5, 11, 17, 37, 47, 89

Why are those the prime factors of the number 868,265,310?

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 868,265,310

868,265,310
Factor Arrows
2434,132,655
Factor Arrows
3144,710,885
Factor Arrows
528,942,177
Factor Arrows
112,631,107
Factor Arrows
17154,771
Factor Arrows
374,183
Factor Arrows
4789

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, 11, 17, 37, 47, 89

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 11 x 17 x 37 x 47 x 89 = 868,265,310

This can also be written as 21 x 31 x 51 x 111 x 171 x 371 x 471 x 891 = 868,265,310

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


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