Q: What are the prime factors of the number 107,306,745?

 A: 3, 5, 7, 13, 127, 619

Why are those the prime factors of the number 107,306,745?

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 107,306,745

107,306,745
Factor Arrows
335,768,915
Factor Arrows
57,153,783
Factor Arrows
71,021,969
Factor Arrows
1378,613
Factor Arrows
127619

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:

3, 5, 7, 13, 127, 619

We can check our work by multiplying all of the prime factors together: 3 x 5 x 7 x 13 x 127 x 619 = 107,306,745

This can also be written as 31 x 51 x 71 x 131 x 1271 x 6191 = 107,306,745

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


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