Q: What are the prime factors of the number 203,133,315?

 A: 3, 5, 7, 11, 175873

Why are those the prime factors of the number 203,133,315?

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 203,133,315

203,133,315
Factor Arrows
367,711,105
Factor Arrows
513,542,221
Factor Arrows
71,934,603
Factor Arrows
11175,873

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, 11, 175873

We can check our work by multiplying all of the prime factors together: 3 x 5 x 7 x 11 x 175,873 = 203,133,315

This can also be written as 31 x 51 x 71 x 111 x 175,8731 = 203,133,315

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


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