Q: What are the prime factors of the number 104,164,576?

 A: 2, 17, 43, 61, 73

Why are those the prime factors of the number 104,164,576?

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 104,164,576

104,164,576
Factor Arrows
252,082,288
Factor Arrows
226,041,144
Factor Arrows
213,020,572
Factor Arrows
26,510,286
Factor Arrows
23,255,143
Factor Arrows
17191,479
Factor Arrows
434,453
Factor Arrows
6173

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, 17, 43, 61, 73

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 17 x 43 x 61 x 73 = 104,164,576

This can also be written as 25 x 171 x 431 x 611 x 731 = 104,164,576

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


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