Q: What are the prime factors of the number 770,564,249?

 A: 7, 13, 29, 59, 101

Why are those the prime factors of the number 770,564,249?

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 770,564,249

770,564,249
Factor Arrows
7110,080,607
Factor Arrows
715,725,801
Factor Arrows
72,246,543
Factor Arrows
13172,811
Factor Arrows
295,959
Factor Arrows
59101

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:

7, 13, 29, 59, 101

We can check our work by multiplying all of the prime factors together: 7 x 7 x 7 x 13 x 29 x 59 x 101 = 770,564,249

This can also be written as 73 x 131 x 291 x 591 x 1011 = 770,564,249

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


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