Q: What are the prime factors of the number 105,554,384?

 A: 2, 13, 509, 997

Why are those the prime factors of the number 105,554,384?

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 105,554,384

105,554,384
Factor Arrows
252,777,192
Factor Arrows
226,388,596
Factor Arrows
213,194,298
Factor Arrows
26,597,149
Factor Arrows
13507,473
Factor Arrows
509997

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, 13, 509, 997

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 13 x 509 x 997 = 105,554,384

This can also be written as 24 x 131 x 5091 x 9971 = 105,554,384

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


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