Q: What are the prime factors of the number 281,832,075?

 A: 3, 5, 7, 8521

Why are those the prime factors of the number 281,832,075?

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 281,832,075

281,832,075
Factor Arrows
393,944,025
Factor Arrows
331,314,675
Factor Arrows
310,438,225
Factor Arrows
52,087,645
Factor Arrows
5417,529
Factor Arrows
759,647
Factor Arrows
78,521

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, 7, 8521

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 5 x 5 x 7 x 7 x 8,521 = 281,832,075

This can also be written as 33 x 52 x 72 x 8,5211 = 281,832,075

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


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