Q: What are the prime factors of the number 11,346,820?

 A: 2, 5, 17, 23, 1451

Why are those the prime factors of the number 11,346,820?

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 11,346,820

11,346,820
Factor Arrows
25,673,410
Factor Arrows
22,836,705
Factor Arrows
5567,341
Factor Arrows
1733,373
Factor Arrows
231,451

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, 17, 23, 1451

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 17 x 23 x 1,451 = 11,346,820

This can also be written as 22 x 51 x 171 x 231 x 1,4511 = 11,346,820

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


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