Q: What are the prime factors of the number 9,769,600?

 A: 2, 5, 43, 71

Why are those the prime factors of the number 9,769,600?

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 9,769,600

9,769,600
Factor Arrows
24,884,800
Factor Arrows
22,442,400
Factor Arrows
21,221,200
Factor Arrows
2610,600
Factor Arrows
2305,300
Factor Arrows
2152,650
Factor Arrows
276,325
Factor Arrows
515,265
Factor Arrows
53,053
Factor Arrows
4371

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, 5, 43, 71

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 5 x 5 x 43 x 71 = 9,769,600

This can also be written as 27 x 52 x 431 x 711 = 9,769,600

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


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