Q: What are the prime factors of the number 605,475,440?

 A: 2, 5, 773, 9791

Why are those the prime factors of the number 605,475,440?

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 605,475,440

605,475,440
Factor Arrows
2302,737,720
Factor Arrows
2151,368,860
Factor Arrows
275,684,430
Factor Arrows
237,842,215
Factor Arrows
57,568,443
Factor Arrows
7739,791

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, 773, 9791

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 773 x 9,791 = 605,475,440

This can also be written as 24 x 51 x 7731 x 9,7911 = 605,475,440

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


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