Question

if (a*5)^n. can end with the digit zero find the minimum value for a

Answer 1

Given : (a*5)ⁿ end with the digit zero

To find :  minimum value for a

Solution:

Any number ending with 0 when raised to power with any integer greater than 0  than end with 0

Hence a * 5 should end with  0  

a * 5  will end with zero with least value of a

if a * 5 = 10

=> a = 1

minimum value for  a  = 2  

minimum value for  a  = 2   so that   (a*5)ⁿ can end with the digit zero

Learn more:

if n is a natural number then find the ending digit of 9n-5n​ - Brainly.in

https://brainly.in/question/14705460

Can the number 6 to the power n, n is a natural number, end with ...

https://brainly.in/question/17883417