Q: What are the prime factors of the number 46,169,280?

 A: 2, 3, 5, 17, 23, 41

Why are those the prime factors of the number 46,169,280?

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 46,169,280

46,169,280
Factor Arrows
223,084,640
Factor Arrows
211,542,320
Factor Arrows
25,771,160
Factor Arrows
22,885,580
Factor Arrows
21,442,790
Factor Arrows
2721,395
Factor Arrows
3240,465
Factor Arrows
380,155
Factor Arrows
516,031
Factor Arrows
17943
Factor Arrows
2341

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, 17, 23, 41

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 3 x 3 x 5 x 17 x 23 x 41 = 46,169,280

This can also be written as 26 x 32 x 51 x 171 x 231 x 411 = 46,169,280

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


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