Q: What are the prime factors of the number 9,805,376?

 A: 2, 7, 43, 509

Why are those the prime factors of the number 9,805,376?

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 9,805,376

9,805,376
Factor Arrows
24,902,688
Factor Arrows
22,451,344
Factor Arrows
21,225,672
Factor Arrows
2612,836
Factor Arrows
2306,418
Factor Arrows
2153,209
Factor Arrows
721,887
Factor Arrows
43509

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, 43, 509

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 43 x 509 = 9,805,376

This can also be written as 26 x 71 x 431 x 5091 = 9,805,376

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


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