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What is the remainder when 50! is divided by 16^15..
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- 16^15... last unit digit is 6 and 50! last unit digit is 0 hence remainder is 6
- 12 years agoHelpfull: Yes(18) No(20)
- remainder is 0
- 12 years agoHelpfull: Yes(8) No(11)
- CYCLICITY of 6 =6
6^15=remainder is always 6
50!=0 as remainder
hence ans =0 - 12 years agoHelpfull: Yes(3) No(7)
- remainder will be 0.16^15=2^(4*15) in 50! except 1! there is a 2 in every 2! 3! 4!..50!.so there are 49 2's and 4 has one extra 2,8 has 2 twos,12 has 1 extra 2,16 has 3 2s and 32 4 2s. in denominator all 2 gets cancelled out.
- 11 years agoHelpfull: Yes(1) No(3)
- 50!=50*49*48*47....*2*1
16 is divisible by 16,32,48 hence three powers of 16 would divide completely.
for the remaining two powers of 16 split 16 as 2x8 hence one more power gets cancelled.
now what remains is 2x8 so 8 is divisible 24,40(remaining numbers), so is 2 hence 16^5 gets completely divided and hence the remainder is 0. - 9 years agoHelpfull: Yes(1) No(1)
- 50!= 1*2*3*4*5*6*7..........50
4n(where n is 1*2*5*6......)
16 is 4 square
4n/4^(any number) will give the remainder as 0. - 9 years agoHelpfull: Yes(1) No(1)
- can u plz explain the solution..?
- 12 years agoHelpfull: Yes(0) No(3)
- Can any one plz explain how cyclicity is calculated..
- 12 years agoHelpfull: Yes(0) No(2)
- can anyone explain the correct solution?? plsssss
- 12 years agoHelpfull: Yes(0) No(1)
- 50!/16^5
take the last digit 6 .By cyclicity of 6, 6 power anything will be 6.
similarly 50! results in 0 as the last digit.
so 0/6= 0 is the remainder. - 8 years agoHelpfull: Yes(0) No(1)
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