Q: What are the prime factors of the number 361,354,125?

 A: 3, 5, 11, 17, 5153

Why are those the prime factors of the number 361,354,125?

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 361,354,125

361,354,125
Factor Arrows
3120,451,375
Factor Arrows
524,090,275
Factor Arrows
54,818,055
Factor Arrows
5963,611
Factor Arrows
1187,601
Factor Arrows
175,153

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, 17, 5153

We can check our work by multiplying all of the prime factors together: 3 x 5 x 5 x 5 x 11 x 17 x 5,153 = 361,354,125

This can also be written as 31 x 53 x 111 x 171 x 5,1531 = 361,354,125

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


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