Q: What are the prime factors of the number 260,643,396?

 A: 2, 3, 13, 41, 40751

Why are those the prime factors of the number 260,643,396?

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 260,643,396

260,643,396
Factor Arrows
2130,321,698
Factor Arrows
265,160,849
Factor Arrows
321,720,283
Factor Arrows
131,670,791
Factor Arrows
4140,751

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, 13, 41, 40751

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 13 x 41 x 40,751 = 260,643,396

This can also be written as 22 x 31 x 131 x 411 x 40,7511 = 260,643,396

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


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