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It is the eighth of this form and the sixth of the form (2 2.q). 68 is a Perrin number. [1] It has an aliquot sum of 58 within an aliquot sequence of two composite numbers (68, 58,32,31,1,0) to the Prime in the 31-aliquot tree. It is the largest known number to be the sum of two primes in exactly two different ways: 68 = 7 + 61 = 31 + 37. [2]
An irreducible fraction (or fraction in lowest terms, simplest form or reduced fraction) is a fraction in which the numerator and denominator are integers that have no other common divisors than 1 (and −1, when negative numbers are considered). [1]
The Beatles had three songs on the Year-End Hot 100, including "Hey Jude", the number one song of 1968. Gary Puckett & The Union Gap had four songs on the Year-End Hot 100, the most of any artist in 1968.
68 may refer to: 68 (number) one of the years 68 BC, AD 68, 1968, 2068; 68 Publishers, a Czech-Canadian publishing firm '68 (band), an American rock band
63 is a Mersenne number of the form with an of , [5] however this does not yield a Mersenne prime, as 63 is the forty-fourth composite number. [6] It is the only number in the Mersenne sequence whose prime factors are each factors of at least one previous element of the sequence ( 3 and 7 , respectively the first and second Mersenne primes). [ 7 ]
With the official certification of the .375 Hölderlin and the 8.5×68mm Fanzoj this German 68 mm "family" of magnum rifle cartridges that all share the same basic cartridge case got expanded in the 21st century. The cartridges in this German 68 mm cartridge "family" are, in the order of development: 8×68mm S (1939) 6.5×68mm (1939)
AOL Mail lets you switch to basic mail so you'll have access to your emails even if your system isn't running the latest operating system or browser.
The 1968 European Cup final was the final match of the 1967–68 European Cup, the premier club football competition in Europe. It was played at Wembley Stadium in London, England, on 29 May 1968 between Benfica of Portugal and Manchester United of England in front of a crowd of 92,225.