Q: What are the prime factors of the number 56,126,304?

 A: 2, 3, 13, 19, 263

Why are those the prime factors of the number 56,126,304?

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 56,126,304

56,126,304
Factor Arrows
228,063,152
Factor Arrows
214,031,576
Factor Arrows
27,015,788
Factor Arrows
23,507,894
Factor Arrows
21,753,947
Factor Arrows
3584,649
Factor Arrows
3194,883
Factor Arrows
364,961
Factor Arrows
134,997
Factor Arrows
19263

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, 13, 19, 263

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 3 x 3 x 13 x 19 x 263 = 56,126,304

This can also be written as 25 x 33 x 131 x 191 x 2631 = 56,126,304

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


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