Q: What are the prime factors of the number 10,011,456?

 A: 2, 3, 7, 13, 191

Why are those the prime factors of the number 10,011,456?

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 10,011,456

10,011,456
Factor Arrows
25,005,728
Factor Arrows
22,502,864
Factor Arrows
21,251,432
Factor Arrows
2625,716
Factor Arrows
2312,858
Factor Arrows
2156,429
Factor Arrows
352,143
Factor Arrows
317,381
Factor Arrows
72,483
Factor Arrows
13191

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, 13, 191

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 3 x 3 x 7 x 13 x 191 = 10,011,456

This can also be written as 26 x 32 x 71 x 131 x 1911 = 10,011,456

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


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