Q: What are the prime factors of the number 10,875,420?

 A: 2, 3, 5, 31, 1949

Why are those the prime factors of the number 10,875,420?

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 10,875,420

10,875,420
Factor Arrows
25,437,710
Factor Arrows
22,718,855
Factor Arrows
3906,285
Factor Arrows
3302,095
Factor Arrows
560,419
Factor Arrows
311,949

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, 31, 1949

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 5 x 31 x 1,949 = 10,875,420

This can also be written as 22 x 32 x 51 x 311 x 1,9491 = 10,875,420

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


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