Q: What are the prime factors of the number 106,360,320?

 A: 2, 3, 5, 11, 1259

Why are those the prime factors of the number 106,360,320?

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 106,360,320

106,360,320
Factor Arrows
253,180,160
Factor Arrows
226,590,080
Factor Arrows
213,295,040
Factor Arrows
26,647,520
Factor Arrows
23,323,760
Factor Arrows
21,661,880
Factor Arrows
2830,940
Factor Arrows
2415,470
Factor Arrows
2207,735
Factor Arrows
369,245
Factor Arrows
513,849
Factor Arrows
111,259

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, 5, 11, 1259

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 2 x 2 x 3 x 5 x 11 x 1,259 = 106,360,320

This can also be written as 29 x 31 x 51 x 111 x 1,2591 = 106,360,320

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


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