Q: What are the prime factors of the number 1,193,984?

 A: 2, 11, 53

Why are those the prime factors of the number 1,193,984?

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 1,193,984

1,193,984
Factor Arrows
2596,992
Factor Arrows
2298,496
Factor Arrows
2149,248
Factor Arrows
274,624
Factor Arrows
237,312
Factor Arrows
218,656
Factor Arrows
29,328
Factor Arrows
24,664
Factor Arrows
22,332
Factor Arrows
21,166
Factor Arrows
2583
Factor Arrows
1153

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, 53

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 2 x 11 x 53 = 1,193,984

This can also be written as 211 x 111 x 531 = 1,193,984

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


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