#Help please i can't find a solution to this
19 messages · Page 1 of 1 (latest)
What do the three dots mean?
So you want to prove that $2^{12}$ is a factor of $3^{2^{10}}-1$?
SWR
Looks like an induction problem
So what have you tried?
!show
Show your work, and if possible, explain where you are stuck.
Yeah I don't think that will help
Try to prove $2^k$ is a factor of $3^{2^k}-1$ using induction
SWR
Just factorise using difference of squares
And since all powers of 3 are odd
When you add one it becomes an even number
So you factor a 2 from each factor and the last factor is 8
So all the factors of 2 times 8 equals 2^12
!nosols
As a helper, please do not give out answers that could be copied as a homework solution. Have the student work through the problem themselves and guide them along the way.