Question 541791
suppose you take the number 

2187

factorize the number by prime factors  (2,3,5,7,11,13,17,etc
keep on dividing . 2187/3 = 729. 729/3=243

3 | 2187
3| 729
3{243
3|81
3|9
3|3
3|1

you have 3*3*3*3*3*3 = 3^6

Same can be applied to any number

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