Q: What are the prime factors of the number 361,053?

 A: 3, 7, 11, 521

Why are those the prime factors of the number 361,053?

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 361,053

361,053
Factor Arrows
3120,351
Factor Arrows
340,117
Factor Arrows
75,731
Factor Arrows
11521

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, 7, 11, 521

We can check our work by multiplying all of the prime factors together: 3 x 3 x 7 x 11 x 521 = 361,053

This can also be written as 32 x 71 x 111 x 5211 = 361,053

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


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