Q: What are the prime factors of the number 64,449,176?

 A: 2, 11, 17, 67, 643

Why are those the prime factors of the number 64,449,176?

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 64,449,176

64,449,176
Factor Arrows
232,224,588
Factor Arrows
216,112,294
Factor Arrows
28,056,147
Factor Arrows
11732,377
Factor Arrows
1743,081
Factor Arrows
67643

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, 11, 17, 67, 643

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 11 x 17 x 67 x 643 = 64,449,176

This can also be written as 23 x 111 x 171 x 671 x 6431 = 64,449,176

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


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