Q: What are the prime factors of the number 501,151,125?

 A: 3, 5, 19, 37, 1901

Why are those the prime factors of the number 501,151,125?

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 501,151,125

501,151,125
Factor Arrows
3167,050,375
Factor Arrows
533,410,075
Factor Arrows
56,682,015
Factor Arrows
51,336,403
Factor Arrows
1970,337
Factor Arrows
371,901

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:

3, 5, 19, 37, 1901

We can check our work by multiplying all of the prime factors together: 3 x 5 x 5 x 5 x 19 x 37 x 1,901 = 501,151,125

This can also be written as 31 x 53 x 191 x 371 x 1,9011 = 501,151,125

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


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