Q: What are the prime factors of the number 305,756,544?

 A: 2, 3, 79, 10079

Why are those the prime factors of the number 305,756,544?

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 305,756,544

305,756,544
Factor Arrows
2152,878,272
Factor Arrows
276,439,136
Factor Arrows
238,219,568
Factor Arrows
219,109,784
Factor Arrows
29,554,892
Factor Arrows
24,777,446
Factor Arrows
22,388,723
Factor Arrows
3796,241
Factor Arrows
7910,079

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, 3, 79, 10079

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 3 x 79 x 10,079 = 305,756,544

This can also be written as 27 x 31 x 791 x 10,0791 = 305,756,544

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


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