Q: What are the prime factors of the number 977,984?

 A: 2, 7, 37, 59

Why are those the prime factors of the number 977,984?

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 977,984

977,984
Factor Arrows
2488,992
Factor Arrows
2244,496
Factor Arrows
2122,248
Factor Arrows
261,124
Factor Arrows
230,562
Factor Arrows
215,281
Factor Arrows
72,183
Factor Arrows
3759

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, 37, 59

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 37 x 59 = 977,984

This can also be written as 26 x 71 x 371 x 591 = 977,984

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


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