Q: What are the prime factors of the number 7,282,688?

 A: 2, 7, 127

Why are those the prime factors of the number 7,282,688?

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 7,282,688

7,282,688
Factor Arrows
23,641,344
Factor Arrows
21,820,672
Factor Arrows
2910,336
Factor Arrows
2455,168
Factor Arrows
2227,584
Factor Arrows
2113,792
Factor Arrows
256,896
Factor Arrows
228,448
Factor Arrows
214,224
Factor Arrows
27,112
Factor Arrows
23,556
Factor Arrows
21,778
Factor Arrows
2889
Factor Arrows
7127

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, 7, 127

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 2 x 2 x 2 x 2 x 2 x 2 x 2 x 7 x 127 = 7,282,688

This can also be written as 213 x 71 x 1271 = 7,282,688

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


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