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Maths Puzzle
Numerical Ability
Number System
238 ^ 728! what is the unit digit?
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-
- 728! is divided by 4
so 238^728! can be written as
238^4
for findind the unit digit
consider only 8^4
unit digit will be 64*64 = 6
the unit digit will be 6 - 9 years agoHelpfull: Yes(2) No(0)
- 728! can be writen in form of 4n
728! contain so many zeros so it is divided by 4
238^728!=238^4n=-----6
so unit digit is 6 - 9 years agoHelpfull: Yes(1) No(0)
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