1. ## Find prime divisor

Hey there, is anyone here with some good computer skills and a good computer that can find a prime divisor of

$\displaystyle 2^{2^{19}-1}-1= 2^{524287} -1$ ?

You would help me alot .

2. Originally Posted by EinStone
Hey there, is anyone here with some good computer skills and a good computer that can find a prime divisor of

$\displaystyle 2^{2^{19}-1}-1= 2^{524287} -1$ ?

You would help me alot .

...good one. This is a rather tough problem and there're supercomputers working at it: read 2.6. in Distributed computing on the Internet

Tonio

3. Originally Posted by EinStone
Hey there, is anyone here with some good computer skills and a good computer that can find a prime divisor of

$\displaystyle 2^{2^{19}-1}-1= 2^{524287} -1$ ?

You would help me alot .
I hope "computer skills" includes internet searching skills

4. This is a factor of $\displaystyle 2^{2^{19}} + 1$ I am looking for one of $\displaystyle 2^{2^{19}-1} - 1$.
This is a factor of $\displaystyle 2^{2^{19}} + 1$ I am looking for one of $\displaystyle 2^{2^{19}-1} - 1$.