Q: What are the prime factors of the number 10,970,820?

 A: 2, 3, 5, 7, 8707

Why are those the prime factors of the number 10,970,820?

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 10,970,820

10,970,820
Factor Arrows
25,485,410
Factor Arrows
22,742,705
Factor Arrows
3914,235
Factor Arrows
3304,745
Factor Arrows
560,949
Factor Arrows
78,707

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, 8707

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 5 x 7 x 8,707 = 10,970,820

This can also be written as 22 x 32 x 51 x 71 x 8,7071 = 10,970,820

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


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