Q: What are the prime factors of the number 977,647?

 A: 11, 31, 47, 61

Why are those the prime factors of the number 977,647?

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 977,647

977,647
Factor Arrows
1188,877
Factor Arrows
312,867
Factor Arrows
4761

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:

11, 31, 47, 61

We can check our work by multiplying all of the prime factors together: 11 x 31 x 47 x 61 = 977,647

This can also be written as 111 x 311 x 471 x 611 = 977,647

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


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