Q: What are the prime factors of the number 64,452,672?

 A: 2, 3, 12433

Why are those the prime factors of the number 64,452,672?

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 64,452,672

64,452,672
Factor Arrows
232,226,336
Factor Arrows
216,113,168
Factor Arrows
28,056,584
Factor Arrows
24,028,292
Factor Arrows
22,014,146
Factor Arrows
21,007,073
Factor Arrows
3335,691
Factor Arrows
3111,897
Factor Arrows
337,299
Factor Arrows
312,433

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, 12433

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 3 x 3 x 12,433 = 64,452,672

This can also be written as 26 x 34 x 12,4331 = 64,452,672

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


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