Q: What are the prime factors of the number 481,534,144?

 A: 2, 7, 13, 89, 929

Why are those the prime factors of the number 481,534,144?

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 481,534,144

481,534,144
Factor Arrows
2240,767,072
Factor Arrows
2120,383,536
Factor Arrows
260,191,768
Factor Arrows
230,095,884
Factor Arrows
215,047,942
Factor Arrows
27,523,971
Factor Arrows
71,074,853
Factor Arrows
1382,681
Factor Arrows
89929

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, 7, 13, 89, 929

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 7 x 13 x 89 x 929 = 481,534,144

This can also be written as 26 x 71 x 131 x 891 x 9291 = 481,534,144

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


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