Q: What are the prime factors of the number 302,543,451?

 A: 3, 7, 53, 30203

Why are those the prime factors of the number 302,543,451?

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 302,543,451

302,543,451
Factor Arrows
3100,847,817
Factor Arrows
333,615,939
Factor Arrows
311,205,313
Factor Arrows
71,600,759
Factor Arrows
5330,203

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, 7, 53, 30203

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 7 x 53 x 30,203 = 302,543,451

This can also be written as 33 x 71 x 531 x 30,2031 = 302,543,451

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


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