### What is 2^77232917 -1?

Posted:

**February 5th, 2018, 9:49 pm**i.e. what is it?

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Posted: **February 5th, 2018, 9:49 pm**

i.e. what is it?

Posted: **February 6th, 2018, 1:18 am**

It is the number that does not end in a zero for all bases up to 2^77232917-1

Posted: **February 6th, 2018, 3:21 pm**

This is [$]M50[$] (Mersenne prime, not the highway). I can compute it but it is 120 km long, I need to find a way to store it. In the meantime, here is [$]M33[$]..Takes a few seconds to compute.It is the number that does not end in a zero for all bases up to 2^77232917-1

Posted: **February 6th, 2018, 3:43 pm**

[$]M50[$] is easy to store & display! As a 24-bit RGB TIFF image, it would be a square or rectangle of white (RGB[255,255,255]) with a bit more than 3.2 megapixels and cover less than half of a 4k-format monitor. It's almost small enough to fit on my iPhone's screen and definitely fits on my iPad's screen.This is [$]M50[$] (Mersenne prime, not the highway). I can compute it but it is 120 km long, I need to find a way to store it. In the meantime, here is [$]M33[$]..Takes a few seconds to compute.It is the number that does not end in a zero for all bases up to 2^77232917-1

Posted: **February 6th, 2018, 3:51 pm**

TIFF != integer. TIFF can't do algebra.[$]M50[$] is easy to store & display! As a 24-bit RGB TIFF image, it would be a square or rectangle of white (RGB[255,255,255]) with a bit more than 3.2 megapixels and cover less than half of a 4k-format monitor. It's almost small enough to fit on my iPhone's screen and definitely fits on my iPad's screen.This is [$]M50[$] (Mersenne prime, not the highway). I can compute it but it is 120 km long, I need to find a way to store it. In the meantime, here is [$]M33[$]..Takes a few seconds to compute.It is the number that does not end in a zero for all bases up to 2^77232917-1

Posted: **February 6th, 2018, 4:30 pm**

ASCII string != integer. And unicode is even worse!TIFF != integer. TIFF can't do algebra.[$]M50[$] is easy to store & display! As a 24-bit RGB TIFF image, it would be a square or rectangle of white (RGB[255,255,255]) with a bit more than 3.2 megapixels and cover less than half of a 4k-format monitor. It's almost small enough to fit on my iPhone's screen and definitely fits on my iPad's screen.This is [$]M50[$] (Mersenne prime, not the highway). I can compute it but it is 120 km long, I need to find a way to store it. In the meantime, here is [$]M33[$]..Takes a few seconds to compute.

Strings on consoles are a horribly inefficient display format -- probably on the order of at least 5 kbits of display memory to show only 3 bits of data.

Posted: **February 6th, 2018, 6:54 pm**

It's just for testing. I'll optimise it later

Here is [$]M40[$]

Here is [$]M40[$]

Posted: **February 6th, 2018, 7:03 pm**

M50 is easy.

Just write "1" 77,232,917 times.

Just write "1" 77,232,917 times.

Posted: **February 16th, 2018, 2:15 pm**

È stato scoperto un numero primo con oltre 23 milioni di cifrei.e. what is it?

Posted: **February 16th, 2018, 2:37 pm**

Esatto.È stato scoperto un numero primo con oltre 23 milioni di cifrei.e. what is it?

Non possiamo fisicamente riportarlo in questo articolo, perché è composto da oltre 23milioni di cifre, ma è stato scoperto il più alto numero primo di cui attualmente siamo a conoscenza. Dal momento che questo problema nel trascriverlo è comune a tutti coloro che non possiedono strumenti specialistici, esso è noto più semplicemente come M77232917.

Posted: **February 17th, 2018, 8:18 am**

\(2^{77232917}-1\neq 10223\times 2^{31172165}+1\)

Posted: **February 18th, 2018, 12:34 am**

io capisco tuttoEsatto.È stato scoperto un numero primo con oltre 23 milioni di cifrei.e. what is it?

Non possiamo fisicamente riportarlo in questo articolo, perché è composto da oltre 23milioni di cifre, ma è stato scoperto il più alto numero primo di cui attualmente siamo a conoscenza. Dal momento che questo problema nel trascriverlo è comune a tutti coloro che non possiedono strumenti specialistici, esso è noto più semplicemente come M77232917.