Q: What are the prime factors of the number 776,500?

 A: 2, 5, 1553

Why are those the prime factors of the number 776,500?

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 776,500

776,500
Factor Arrows
2388,250
Factor Arrows
2194,125
Factor Arrows
538,825
Factor Arrows
57,765
Factor Arrows
51,553

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, 5, 1553

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 5 x 5 x 1,553 = 776,500

This can also be written as 22 x 53 x 1,5531 = 776,500

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


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