Q: What are the prime factors of the number 133,644,210?

 A: 2, 3, 5, 7, 101, 6301

Why are those the prime factors of the number 133,644,210?

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 133,644,210

133,644,210
Factor Arrows
266,822,105
Factor Arrows
322,274,035
Factor Arrows
54,454,807
Factor Arrows
7636,401
Factor Arrows
1016,301

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:

2, 3, 5, 7, 101, 6301

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 7 x 101 x 6,301 = 133,644,210

This can also be written as 21 x 31 x 51 x 71 x 1011 x 6,3011 = 133,644,210

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


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