Q: What are the prime factors of the number 10,531,472?

 A: 2, 7, 19, 101

Why are those the prime factors of the number 10,531,472?

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 10,531,472

10,531,472
Factor Arrows
25,265,736
Factor Arrows
22,632,868
Factor Arrows
21,316,434
Factor Arrows
2658,217
Factor Arrows
794,031
Factor Arrows
713,433
Factor Arrows
71,919
Factor Arrows
19101

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, 19, 101

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 7 x 7 x 7 x 19 x 101 = 10,531,472

This can also be written as 24 x 73 x 191 x 1011 = 10,531,472

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


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