Base-dependent integer sequences | Classes of prime numbers
An emirp (prime spelled backwards) is a prime number that results in a different prime when its decimal digits are reversed. This definition excludes the related palindromic primes. The term reversible prime is used to mean the same as emirp, but may also, ambiguously, include the palindromic primes. The sequence of emirps begins 13, 17, 31, 37, 71, 73, 79, 97, 107, 113, 149, 157, 167, 179, 199, 311, 337, 347, 359, 389, 701, 709, 733, 739, 743, 751, 761, 769, 907, 937, 941, 953, 967, 971, 983, 991, ... (sequence in the OEIS). All non-palindromic permutable primes are emirps. As of November 2009, the largest known emirp is 1010006+941992101×104999+1, found by Jens Kruse Andersen in October 2007. The term 'emirpimes' (singular) is used also in places to treat semiprimes in a similar way. That is, an emirpimes is a semiprime that is also a (distinct) semiprime upon reversing its digits. It is an open problem whether there are infinitely many emirps. (sequence in the OEIS) (Wikipedia).
Sandy Skies - Dubai 4K - Driving Downtown
Mid morning drive from the suburbs of Dubai to Al Sharjah from my last visit. I'm in Florida all week then back to other travel shortly. Hope everyone is doing well! Dubai is a city and emirate in the United Arab Emirates known for luxury shopping, ultramodern architecture and a lively n
From playlist Location by Climate - Dry Climate - J Utah
Dubai 4K - Skyline Expressway Sunrise - Driving Downtown
Early morning drive around the expressways of Dubai. Video starts in the middle of Downtown Dubai, heads to Sharjah, and then to the Dubai Marina. Currently traveling. New videos in a few days! Dubai is a city and emirate in the United Arab Emirates known for luxury shopping, ultramoder
From playlist Location by Climate - Dry Climate - J Utah
From playlist Dimensions Arabe/Arabic / العربية
What Number Comes Next? - Numberphile
Maybe pause the video and see if you can figure these out? Featuring Neil Sloane of OEIS fame... More links & stuff in full description below, including spoilers ↓↓↓ Extra footage from this video: https://youtu.be/ydn7s9-3GRc Neil Sloane is the founder of the Online Encyclopedia of Integ
From playlist Neil Sloane on Numberphile
Emirp Numbers? #Shorts #YouTubeShorts | Don't Memorise
What are Emirp Numbers? Watch this video to know more... ✅Download the Infinity Learn APP Now➡️ https://vsbpz.app.link/dmil Don’t Memorise brings learning to life through its captivating educational videos. To Know More, visit https://infinitylearn.com/ New videos every week. To stay up
From playlist Shorts
From playlist Dimensions Arabe/Arabic / العربية
From playlist Dimensions Arabe/Arabic / العربية
From playlist Dimensions Arabe/Arabic / العربية
Saudi military intervention in Bahrain
Saudi Arabia has sent more than a thousand soldiers to Bahrain. More troops are expected to arrive from the United Arab Emirates. This indicates that the military and police forces of Bahrain can no longer guarantee to contain the unrest. It also shows that the gulf Arab countries are not
From playlist Geopolitics
From playlist Dimensions Arabe/Arabic / العربية
937 is a PRIME-arily Awesome Number!
937 is a surprising remarkable number - find out why here! Sponsored by Squarespace - get your own beautiful website at: http://squarespace.com/drawcuriosity Use CODE 'DC' to get 10% off at check out I've been wanting to make another video on maths for ages, so boom, here you go, recreati
From playlist Mathematics