Q: What are the prime factors of the number 5,981,248?

 A: 2, 7, 13, 79

Why are those the prime factors of the number 5,981,248?

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 5,981,248

5,981,248
Factor Arrows
22,990,624
Factor Arrows
21,495,312
Factor Arrows
2747,656
Factor Arrows
2373,828
Factor Arrows
2186,914
Factor Arrows
293,457
Factor Arrows
713,351
Factor Arrows
131,027
Factor Arrows
1379

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, 79

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 7 x 13 x 13 x 79 = 5,981,248

This can also be written as 26 x 71 x 132 x 791 = 5,981,248

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


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