Q: What are the prime factors of the number 104,273,376?

 A: 2, 3, 17, 181, 353

Why are those the prime factors of the number 104,273,376?

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 104,273,376

104,273,376
Factor Arrows
252,136,688
Factor Arrows
226,068,344
Factor Arrows
213,034,172
Factor Arrows
26,517,086
Factor Arrows
23,258,543
Factor Arrows
31,086,181
Factor Arrows
1763,893
Factor Arrows
181353

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, 3, 17, 181, 353

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 17 x 181 x 353 = 104,273,376

This can also be written as 25 x 31 x 171 x 1811 x 3531 = 104,273,376

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


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