Q: What are the prime factors of the number 503,326,404?

 A: 2, 3, 7, 59, 97, 349

Why are those the prime factors of the number 503,326,404?

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 503,326,404

503,326,404
Factor Arrows
2251,663,202
Factor Arrows
2125,831,601
Factor Arrows
341,943,867
Factor Arrows
313,981,289
Factor Arrows
71,997,327
Factor Arrows
5933,853
Factor Arrows
97349

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, 59, 97, 349

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 7 x 59 x 97 x 349 = 503,326,404

This can also be written as 22 x 32 x 71 x 591 x 971 x 3491 = 503,326,404

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


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