Q: What are the prime factors of the number 39,100,368?

 A: 2, 3, 23, 107, 331

Why are those the prime factors of the number 39,100,368?

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 39,100,368

39,100,368
Factor Arrows
219,550,184
Factor Arrows
29,775,092
Factor Arrows
24,887,546
Factor Arrows
22,443,773
Factor Arrows
3814,591
Factor Arrows
2335,417
Factor Arrows
107331

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, 23, 107, 331

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 23 x 107 x 331 = 39,100,368

This can also be written as 24 x 31 x 231 x 1071 x 3311 = 39,100,368

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


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