Q: What are the prime factors of the number 761,780,088?

 A: 2, 3, 43, 197, 1249

Why are those the prime factors of the number 761,780,088?

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 761,780,088

761,780,088
Factor Arrows
2380,890,044
Factor Arrows
2190,445,022
Factor Arrows
295,222,511
Factor Arrows
331,740,837
Factor Arrows
310,580,279
Factor Arrows
43246,053
Factor Arrows
1971,249

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, 43, 197, 1249

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 43 x 197 x 1,249 = 761,780,088

This can also be written as 23 x 32 x 431 x 1971 x 1,2491 = 761,780,088

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


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