Q: What are the prime factors of the number 64,734,624?

 A: 2, 3, 53, 4241

Why are those the prime factors of the number 64,734,624?

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 64,734,624

64,734,624
Factor Arrows
232,367,312
Factor Arrows
216,183,656
Factor Arrows
28,091,828
Factor Arrows
24,045,914
Factor Arrows
22,022,957
Factor Arrows
3674,319
Factor Arrows
3224,773
Factor Arrows
534,241

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, 53, 4241

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 3 x 53 x 4,241 = 64,734,624

This can also be written as 25 x 32 x 531 x 4,2411 = 64,734,624

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


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