Q: What are the prime factors of the number 782,768?

 A: 2, 7, 29, 241

Why are those the prime factors of the number 782,768?

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 782,768

782,768
Factor Arrows
2391,384
Factor Arrows
2195,692
Factor Arrows
297,846
Factor Arrows
248,923
Factor Arrows
76,989
Factor Arrows
29241

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, 7, 29, 241

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 7 x 29 x 241 = 782,768

This can also be written as 24 x 71 x 291 x 2411 = 782,768

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


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