- published: 07 Jun 2016
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In recreational mathematics, a repunit is a number like 11, 111, or 1111 that contains only the digit 1 — a more specific type of repdigit. The term stands for repeated unit and was coined in 1966 by Albert H. Beiler in his book Recreations in the Theory of Numbers.
A repunit prime is a repunit that is also a prime number. Primes that are repunits in base 2 are Mersenne primes.
The base-b repunits are defined as (this b can be either positive or negative)
Thus, the number Rn(b) consists of n copies of the digit 1 in base b representation. The first two repunits base b for n=1 and n=2 are
In particular, the decimal (base-10) repunits that are often referred to as simply repunits are defined as
Thus, the number Rn = Rn(10) consists of n copies of the digit 1 in base 10 representation. The sequence of repunits base 10 starts with
Similarly, the repunits base 2 are defined as
Thus, the number Rn(2) consists of n copies of the digit 1 in base 2 representation. In fact, the base-2 repunits are the well-known Mersenne numbers Mn = 2n − 1, they start with
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http://demonstrations.wolfram.com/AlmostRepunitPrimes The Wolfram Demonstrations Project contains thousands of free interactive visualizations, with new entries added daily. A repunit is a number using only one digit. The numbers 11 and 1111111111111111111 are examples of repunit primes. The number of ones in such a repunit primes can be 2, 19, 23, 317, 1031, 49081, 86453, or 109297. An almost repunit number repeats a digit... Contributed by: Ed Pegg Jr
first 1 (of i've FA)
como verificar usando codigo c++ si un numero es repunit
Repunit In recreational mathematics, a repunit is a number like 11, 111, or 1111 that contains only the digit 1 — a more specific type of repdigit.The term stands for repeated unit and was coined in 1966 by Albert H. -Video is targeted to blind users Attribution: Article text available under CC-BY-SA image source in video https://www.youtube.com/watch?v=48fL52W2hdI
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With reference to studio design development, the vidoe explores the notion of waiting and the role of time in the NHS
A very rare catch of Port Authority REP Truck responding code 3 in Times Square -Port Authority - bus terminal Nyc
Watch in "HD" New York City Police Department - NYPD ESU REP Unit Cruising By During The United Nations General Assembly In Manhattan Hope You Enjoy and do not forget to Like, Comment, and Subscribe. Check Out My Channel For More Videos Containing FDNY Fires, FDNY Responding, FDNY Fire Trucks & FDNY On Scene Videos. Thanks!!! https://twitter.com/kusduece Follow on Twitter @KusDuece
Snow started to fall in Dorset in the evening of Monday 21st January 1986 and the following day we find trains running well at Christchurch station. A Rep/TC combination makes a sure footed get away towards Bournemouth with the Down Semi, followed by 47468 on an Up interregional, 1M23 14.40 Poole to Liverpool Lime St, which it worked as far as Reading. 47468 is noteworthy for later having ETH removed to become 47300. An Up semi fast formed of a 12-car Rep/TC calls, followed by 4-Vep 3134 (7834) on the Up slow as snow falls. This was long before we had station announcements warning of an approaching train and the power hungry tube video camera took an eternity to 'warm up', so the following Up fast was only just caught with 4-TC 433 leading. Unusually the 4-Rep is powering sandwiched betwee...
INTRO
"Good evening. This is the intergalactic operator. Can I help you?"
"Yes. I'm trying to reach flight commander P.R. Johnson, on Mars, flight 2-4-7"
"Very well, hold on please [beeping] you're through!"
"Thank you operator!"
VERSE 1 :
Hi darlin' ! How are you doing ?
Hey baby, where're your sleeping ?
Oh I'm sorry, but I've been really missing you !
Hi darlin' ! How's the weather?
Say baby, is that cold better now ?
Oh I'm sorry, is there someone there with you??
BRIDGE:
Ooooh...since you went away, there's nothing goin' right !
I just can't sleep alone at night... I'm not ashamed to say
I badly need a friend...or it's the end.
CHORUS:
Now, when I look at the cloud's across the moon.
Here in the night I just hope and pray that soon.
Oh baby, you'll hurry home to me.
VERSE 2 :
Hi darlin', the kids say they love you.
Hey baby, is everything fine with you?
Please forgive me, but I'm trying not to cry...
BRIDGE :
Ooooh...I've had a million different lovers on the phone.
But I just stayed right here at home.
I don't think that I can take it anymore this crazy war.
CHORUS
"I'm sorry to interrupt your conversation, but we are
experiencing violent storm conditions in the asteriod belt at this
time. We may lose this valuable deep space communication link.
Please, be as brief as possible.
Thank you."
BRIDGE
or it's...or it's..."Hello?" "Hello operator?"
" Yes, we've lost the connection! Could you try again please?"
-"I'm sorry, but I'm afraid we've lost contact with Mars 2-4-7
at this time."
CHORUS repeat 3 times WHILE SAYING:
"Ok. Thank you very much...
I'll...I'll try again next year...next year...next year...next year..."
CHORUS INTERMEZZO
SOLO BASS-GUITAR
BRIDGE INTERMEZZO