which one is the power of 3== 6245,6762,6074,6561,6178

• all powers of 3 is having this digits in units place(1,3,7,9)in above problem except 6561 have 1 in unit digit
• 11 years agoHelpfull: Yes(25) No(0)
• 6245 is divisible by 5.
  6762, 6074 and 6178 are even numbers
  So the remaining option is 6561= 3^8
• 11 years agoHelpfull: Yes(4) No(0)
• among the numbers check which are exactly divisble by 3. of them we will find 6762 and 6561 are divible exactly by 3.Now check 6762/3 and keep on dividing...remember the divisiblity rule of 3.You will find 6561 are perfectly divisible .. and simply 6561 =81*81 i.e 3^4 * 3^4= 3*8...so 8th power of 3
• 11 years agoHelpfull: Yes(2) No(0)
• 6561,because any power of 3 will be get divided by 3.So,if we go for the divisibility test only 6561(6+5+6+1=18) gets divided by 3.(18 is divisible by 3)
• 11 years agoHelpfull: Yes(0) No(1)
• 6561 is the power of 3
  its unit digit is 1
  which we can get from 3^4n
• 11 years agoHelpfull: Yes(0) No(0)
• only 6762 & 6561 is divisible by 3 where 6762 is even ...
  hence the ans is 6561
• 11 years agoHelpfull: Yes(0) No(0)