Q: What are the prime factors of the number 385,256,934?

 A: 2, 3, 71, 487, 619

Why are those the prime factors of the number 385,256,934?

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 385,256,934

385,256,934
Factor Arrows
2192,628,467
Factor Arrows
364,209,489
Factor Arrows
321,403,163
Factor Arrows
71301,453
Factor Arrows
487619

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, 71, 487, 619

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 71 x 487 x 619 = 385,256,934

This can also be written as 21 x 32 x 711 x 4871 x 6191 = 385,256,934

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


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