Q: What are the prime factors of the number 8,838,144?

 A: 2, 3, 7, 137

Why are those the prime factors of the number 8,838,144?

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 8,838,144

8,838,144
Factor Arrows
24,419,072
Factor Arrows
22,209,536
Factor Arrows
21,104,768
Factor Arrows
2552,384
Factor Arrows
2276,192
Factor Arrows
2138,096
Factor Arrows
269,048
Factor Arrows
234,524
Factor Arrows
217,262
Factor Arrows
28,631
Factor Arrows
32,877
Factor Arrows
3959
Factor Arrows
7137

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, 137

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 2 x 2 x 2 x 3 x 3 x 7 x 137 = 8,838,144

This can also be written as 210 x 32 x 71 x 1371 = 8,838,144

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


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