Q: What are the prime factors of the number 6,407,100?

 A: 2, 3, 5, 7, 113

Why are those the prime factors of the number 6,407,100?

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 6,407,100

6,407,100
Factor Arrows
23,203,550
Factor Arrows
21,601,775
Factor Arrows
3533,925
Factor Arrows
3177,975
Factor Arrows
359,325
Factor Arrows
319,775
Factor Arrows
53,955
Factor Arrows
5791
Factor Arrows
7113

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, 7, 113

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 3 x 3 x 5 x 5 x 7 x 113 = 6,407,100

This can also be written as 22 x 34 x 52 x 71 x 1131 = 6,407,100

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


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