The numbers from 1 to 150, inclusive, are placed in a bag and a number is randomly selected from the bag. What is the probability it is not a perfect power (integers that can be expressed as x^y where x is an integer and y is an integer greater than 1. For example, 2^4 is a perfect power, while 2*3=6 is not a perfect power)? Express your answer as a common fraction.

Guest Nov 6, 2018

#1**0 **

1

4 8 16 32 64 128

9 27 81

25 125

36

49

100

121

144

17 out of 150 ARE perfect powers

so 133/150

Corrected....thanx guest

ElectricPavlov
Nov 6, 2018

edited by
Guest
Nov 6, 2018

edited by Guest Nov 6, 2018

edited by Guest Nov 6, 2018

edited by Guest Nov 6, 2018

edited by Guest Nov 6, 2018

edited by Guest Nov 6, 2018

edited by Guest Nov 6, 2018