Q: What are the prime factors of the number 760,171,776?

 A: 2, 3, 7, 13, 73, 149

Why are those the prime factors of the number 760,171,776?

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 760,171,776

760,171,776
Factor Arrows
2380,085,888
Factor Arrows
2190,042,944
Factor Arrows
295,021,472
Factor Arrows
247,510,736
Factor Arrows
223,755,368
Factor Arrows
211,877,684
Factor Arrows
25,938,842
Factor Arrows
22,969,421
Factor Arrows
3989,807
Factor Arrows
7141,401
Factor Arrows
1310,877
Factor Arrows
73149

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, 7, 13, 73, 149

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 3 x 7 x 13 x 73 x 149 = 760,171,776

This can also be written as 28 x 31 x 71 x 131 x 731 x 1491 = 760,171,776

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


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