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I found this somewhere. I thought of sharing with everyone. Do try finding out numbers of such kind! (bigger than this)

Note by Aditya Kumar 1 year, 11 months ago

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Next largest such prime is \(59393339\). There are only \(83\) such right-truncatable primes.

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Sir did you proved it or searched it internet

I've heard of this before, so I just looked up Truncatable Primes. But I don't think it's particularly difficult to prove that there's only a limited number, so that a quick computer search can find all of them.

@Michael Mendrin – Oh, can you suggest me some ways to do my RMO well

I think it is difficult to calculate that without using coding.

I think one can get such primes by coding. If its a number theory problem , its way too difficult for me...

Do give it a try :)

This is so far from me. Maybe one day, but not today.

\(23\)

Something bigger?

\(29\ddot \smile\)

@Akshat Sharda – Read the note carefully!

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TopNewestNext largest such prime is \(59393339\). There are only \(83\) such right-truncatable primes.

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Sir did you proved it or searched it internet

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I've heard of this before, so I just looked up Truncatable Primes. But I don't think it's particularly difficult to prove that there's only a limited number, so that a quick computer search can find all of them.

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I think it is difficult to calculate that without using coding.

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I think one can get such primes by coding. If its a number theory problem , its way too difficult for me...

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Do give it a try :)

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This is so far from me. Maybe one day, but not today.

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\(23\)

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Something bigger?

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\(29\ddot \smile\)

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