Q: What are the prime factors of the number 69,245,680?

 A: 2, 5, 7, 123653

Why are those the prime factors of the number 69,245,680?

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 69,245,680

69,245,680
Factor Arrows
234,622,840
Factor Arrows
217,311,420
Factor Arrows
28,655,710
Factor Arrows
24,327,855
Factor Arrows
5865,571
Factor Arrows
7123,653

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, 5, 7, 123653

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 7 x 123,653 = 69,245,680

This can also be written as 24 x 51 x 71 x 123,6531 = 69,245,680

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


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