Q: What are the prime factors of the number 202,303,332?

 A: 2, 3, 7, 11, 17, 53

Why are those the prime factors of the number 202,303,332?

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 202,303,332

202,303,332
Factor Arrows
2101,151,666
Factor Arrows
250,575,833
Factor Arrows
316,858,611
Factor Arrows
35,619,537
Factor Arrows
31,873,179
Factor Arrows
3624,393
Factor Arrows
3208,131
Factor Arrows
369,377
Factor Arrows
79,911
Factor Arrows
11901
Factor Arrows
1753

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, 7, 11, 17, 53

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 3 x 3 x 3 x 3 x 7 x 11 x 17 x 53 = 202,303,332

This can also be written as 22 x 36 x 71 x 111 x 171 x 531 = 202,303,332

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


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