Q: What are the prime factors of the number 35,409,825?

 A: 3, 5, 11, 19, 251

Why are those the prime factors of the number 35,409,825?

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 35,409,825

35,409,825
Factor Arrows
311,803,275
Factor Arrows
33,934,425
Factor Arrows
31,311,475
Factor Arrows
5262,295
Factor Arrows
552,459
Factor Arrows
114,769
Factor Arrows
19251

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, 11, 19, 251

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 5 x 5 x 11 x 19 x 251 = 35,409,825

This can also be written as 33 x 52 x 111 x 191 x 2511 = 35,409,825

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


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