Daffodil International University

Educational => Mathematics => Interesting Maths => Topic started by: sadia.ameen on July 25, 2013, 12:48:12 PM

Title: Amazing Prime Numbers
Post by: sadia.ameen on July 25, 2013, 12:48:12 PM

Here are few amazing prime numbers, these prime numbers were proved by the XVIIIth century.

31
331
3331
33331
333331
3333331
33333331

The next number 333333331 is not a prime number. Whereas it is multiplied by 17 x 19607843 = 333333331.

Title: Re: Amazing Prime Numbers
Post by: Farhana Israt Jahan on July 29, 2013, 05:17:50 PM

Interesting...

Title: Re: Amazing Prime Numbers
Post by: maruppharm on November 09, 2013, 09:41:29 PM

Wow... very amazing.

Title: Re: Amazing Prime Numbers
Post by: shirin.ns on March 31, 2014, 11:44:47 AM

It's really amazing!