Q: What are the prime factors of the number 310,140,100?

 A: 2, 5, 53, 163, 359

Why are those the prime factors of the number 310,140,100?

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 310,140,100

310,140,100
Factor Arrows
2155,070,050
Factor Arrows
277,535,025
Factor Arrows
515,507,005
Factor Arrows
53,101,401
Factor Arrows
5358,517
Factor Arrows
163359

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, 53, 163, 359

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 5 x 53 x 163 x 359 = 310,140,100

This can also be written as 22 x 52 x 531 x 1631 x 3591 = 310,140,100

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


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