Q: What are the prime factors of the number 773,140?

 A: 2, 5, 29, 31, 43

Why are those the prime factors of the number 773,140?

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 773,140

773,140
Factor Arrows
2386,570
Factor Arrows
2193,285
Factor Arrows
538,657
Factor Arrows
291,333
Factor Arrows
3143

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, 29, 31, 43

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 29 x 31 x 43 = 773,140

This can also be written as 22 x 51 x 291 x 311 x 431 = 773,140

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


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