Q: What are the prime factors of the number 969,984?

 A: 2, 3, 421

Why are those the prime factors of the number 969,984?

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 969,984

969,984
Factor Arrows
2484,992
Factor Arrows
2242,496
Factor Arrows
2121,248
Factor Arrows
260,624
Factor Arrows
230,312
Factor Arrows
215,156
Factor Arrows
27,578
Factor Arrows
23,789
Factor Arrows
31,263
Factor Arrows
3421

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, 421

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 3 x 3 x 421 = 969,984

This can also be written as 28 x 32 x 4211 = 969,984

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


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