Q: What are the prime factors of the number 403,043,212?

 A: 2, 11, 13, 149, 4729

Why are those the prime factors of the number 403,043,212?

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 403,043,212

403,043,212
Factor Arrows
2201,521,606
Factor Arrows
2100,760,803
Factor Arrows
119,160,073
Factor Arrows
13704,621
Factor Arrows
1494,729

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, 11, 13, 149, 4729

We can check our work by multiplying all of the prime factors together: 2 x 2 x 11 x 13 x 149 x 4,729 = 403,043,212

This can also be written as 22 x 111 x 131 x 1491 x 4,7291 = 403,043,212

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


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