Q: What are the prime factors of the number 69,399,616?

 A: 2, 11, 13, 7583

Why are those the prime factors of the number 69,399,616?

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 69,399,616

69,399,616
Factor Arrows
234,699,808
Factor Arrows
217,349,904
Factor Arrows
28,674,952
Factor Arrows
24,337,476
Factor Arrows
22,168,738
Factor Arrows
21,084,369
Factor Arrows
1198,579
Factor Arrows
137,583

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, 13, 7583

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 11 x 13 x 7,583 = 69,399,616

This can also be written as 26 x 111 x 131 x 7,5831 = 69,399,616

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


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