Q: What are the prime factors of the number 53,043,003?

 A: 3, 13, 19, 107, 223

Why are those the prime factors of the number 53,043,003?

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 53,043,003

53,043,003
Factor Arrows
317,681,001
Factor Arrows
35,893,667
Factor Arrows
13453,359
Factor Arrows
1923,861
Factor Arrows
107223

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, 13, 19, 107, 223

We can check our work by multiplying all of the prime factors together: 3 x 3 x 13 x 19 x 107 x 223 = 53,043,003

This can also be written as 32 x 131 x 191 x 1071 x 2231 = 53,043,003

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


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