Q: What are the prime factors of the number 345,545,776?

 A: 2, 2099, 10289

Why are those the prime factors of the number 345,545,776?

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 345,545,776

345,545,776
Factor Arrows
2172,772,888
Factor Arrows
286,386,444
Factor Arrows
243,193,222
Factor Arrows
221,596,611
Factor Arrows
2,09910,289

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, 2099, 10289

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2,099 x 10,289 = 345,545,776

This can also be written as 24 x 2,0991 x 10,2891 = 345,545,776

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


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