Q: What are the prime factors of the number 202,041,345?

 A: 3, 5, 11, 17, 19, 223

Why are those the prime factors of the number 202,041,345?

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 202,041,345

202,041,345
Factor Arrows
367,347,115
Factor Arrows
513,469,423
Factor Arrows
111,224,493
Factor Arrows
1772,029
Factor Arrows
174,237
Factor Arrows
19223

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, 19, 223

We can check our work by multiplying all of the prime factors together: 3 x 5 x 11 x 17 x 17 x 19 x 223 = 202,041,345

This can also be written as 31 x 51 x 111 x 172 x 191 x 2231 = 202,041,345

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


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