Q: What are the prime factors of the number 11,234,432?

 A: 2, 11, 79, 101

Why are those the prime factors of the number 11,234,432?

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 11,234,432

11,234,432
Factor Arrows
25,617,216
Factor Arrows
22,808,608
Factor Arrows
21,404,304
Factor Arrows
2702,152
Factor Arrows
2351,076
Factor Arrows
2175,538
Factor Arrows
287,769
Factor Arrows
117,979
Factor Arrows
79101

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, 79, 101

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 11 x 79 x 101 = 11,234,432

This can also be written as 27 x 111 x 791 x 1011 = 11,234,432

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


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