Q: What are the prime factors of the number 11,231,402?

 A: 2, 7, 13, 47, 101

Why are those the prime factors of the number 11,231,402?

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 11,231,402

11,231,402
Factor Arrows
25,615,701
Factor Arrows
7802,243
Factor Arrows
1361,711
Factor Arrows
134,747
Factor Arrows
47101

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, 7, 13, 47, 101

We can check our work by multiplying all of the prime factors together: 2 x 7 x 13 x 13 x 47 x 101 = 11,231,402

This can also be written as 21 x 71 x 132 x 471 x 1011 = 11,231,402

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


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