Q: What are the prime factors of the number 1,416,100?

 A: 2, 5, 7, 17

Why are those the prime factors of the number 1,416,100?

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 1,416,100

1,416,100
Factor Arrows
2708,050
Factor Arrows
2354,025
Factor Arrows
570,805
Factor Arrows
514,161
Factor Arrows
72,023
Factor Arrows
7289
Factor Arrows
1717

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, 5, 7, 17

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 5 x 7 x 7 x 17 x 17 = 1,416,100

This can also be written as 22 x 52 x 72 x 172 = 1,416,100

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


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