Q: What are the prime factors of the number 164,356,556?

 A: 2, 7, 13, 47, 739

Why are those the prime factors of the number 164,356,556?

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 164,356,556

164,356,556
Factor Arrows
282,178,278
Factor Arrows
241,089,139
Factor Arrows
75,869,877
Factor Arrows
13451,529
Factor Arrows
1334,733
Factor Arrows
47739

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, 7, 13, 47, 739

We can check our work by multiplying all of the prime factors together: 2 x 2 x 7 x 13 x 13 x 47 x 739 = 164,356,556

This can also be written as 22 x 71 x 132 x 471 x 7391 = 164,356,556

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


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