Q: What are the prime factors of the number 46,194,688?

 A: 2, 5639

Why are those the prime factors of the number 46,194,688?

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 46,194,688

46,194,688
Factor Arrows
223,097,344
Factor Arrows
211,548,672
Factor Arrows
25,774,336
Factor Arrows
22,887,168
Factor Arrows
21,443,584
Factor Arrows
2721,792
Factor Arrows
2360,896
Factor Arrows
2180,448
Factor Arrows
290,224
Factor Arrows
245,112
Factor Arrows
222,556
Factor Arrows
211,278
Factor Arrows
25,639

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, 5639

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 5,639 = 46,194,688

This can also be written as 213 x 5,6391 = 46,194,688

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


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