Q: What are the prime factors of the number 275,647,725?

 A: 3, 5, 19, 21493

Why are those the prime factors of the number 275,647,725?

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 275,647,725

275,647,725
Factor Arrows
391,882,575
Factor Arrows
330,627,525
Factor Arrows
310,209,175
Factor Arrows
52,041,835
Factor Arrows
5408,367
Factor Arrows
1921,493

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, 21493

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 5 x 5 x 19 x 21,493 = 275,647,725

This can also be written as 33 x 52 x 191 x 21,4931 = 275,647,725

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


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