Q: What are the prime factors of the number 304,153,443?

 A: 3, 11, 17, 127, 1423

Why are those the prime factors of the number 304,153,443?

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 304,153,443

304,153,443
Factor Arrows
3101,384,481
Factor Arrows
333,794,827
Factor Arrows
113,072,257
Factor Arrows
17180,721
Factor Arrows
1271,423

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, 11, 17, 127, 1423

We can check our work by multiplying all of the prime factors together: 3 x 3 x 11 x 17 x 127 x 1,423 = 304,153,443

This can also be written as 32 x 111 x 171 x 1271 x 1,4231 = 304,153,443

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


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