The smallest odd prime number that cannot be expressed as the sum of a power of two and a prime (so it is also the smallest prime that becomes composite upon changing any one of the bits in its binary expansion). [Capelle]
Monarchos won the 127th Kentucky Derby.
Place a one on both ends of 127 eights to form a prime. [Kulsha]
 (127) = 1!3 + 2!3 + 7!3, where n!3 is the triple factorial function.
127 divides (3^3^2 + 2^2^3). [Kulsha]
20 + 21 + 22 + 23 + 24 + 25 + 26 = 127.
The smallest Friedman prime number. Note that 127 = 27 - 1. [Zevulun]
127 can also be expressed as the sum of factorials of the first three odd numbers (1! + 3! + 5!).
John Barrymore kissed Mary Astor and Estelle Taylor a total of 127 times in the film Don Juan (1926). [Dobb]
"And Sarah was an hundred and seven and twenty years old:
these were the years of the life of Sarah." (Genesis 23:1,
KJV)
The smallest Q-E-D prime (Quasiall-Even-Digits prime) -- a prime with
even digits and two odd digits.
There are 127 prime pairs that sum to ten thousand. [Richstein]
2126 + 7 is the smallest 127-bit prime. [Kulsha]
The last three digits of the eleventh Mersenne prime is 127. Note that the next
Mersenne prime happens to be M(127). [Honaker]
ASCII characters are numbered from 0 to 127.
127 * 1031000 + 1 is prime. [Brown]
127 = 43 * 2 - 1. [Kulsha]
127 127
2 - 1 2 + 1
--------- and --------- are primes. [Luhn]
2 - 1 2 + 1
127 = 5! + 7. Note that 5 and 7 are twin primes. [Avrutin]
127 = 102 + 33. [Trigg]
The thickness of a human hair is ~ 1/127 inch. [Gribbin]
27 - 1 is the number of ways of drawing any number of nonintersecting chords among 7 points on a circle. [Rupinski]
Mozart, a prime composer, was born on 1/27. [Patterson]
In the 19th century, Camille Armand Jules Marie, better known as the "Prince de Polignac," missed the fact that 127 is not an odd number that is the sum of a power of two and a prime. Andy Edwards coined the name "obstinate numbers" to describe such integers.
127 = -1 + 27. (All digits are used in the same order.) [Jeursen]
127 = 1*prime(1) + 2*prime(2) + 7*prime(7). Note that 127
is the largest number with this property. There are only two such numbers, and both are primes. [Firoozbakht]
127 millimeters is exactly five inches. [Vrba]
127 is the first odd prime Motzkin number. [Post]
The number of prime-numbered days of the month in a leap year. [Cabisco]
The smallest wasteful prime number, which may be described as using fewer letters than in its standard name: "five cubed plus two" rather than "one hundred and twenty-seven." [Beedassy]
The smallest prime number that is the concatenation of two distinct cubes (1 and 27). [Cuenta]
M(127) = M(M(7)) = M(M(M(3))) = M(M(M(M(2)))). Note that M(2), M(3), M(7) and M(127) are all Mersenne primes. [Capelle]
Maya Mohsin Ahmed of UC Davis found that the numbers in an 8-by-8 Franklin square can be described by 127 equations. When Benjamin Franklin (1706-1790) wasn't flying kites, the noted polymath found time to experiment with recreational mathematics. Among other things, he invented magic square variants that are constructed with nonnegative numbers and contain the following properties: the entries of each row and column add to a common (or magic) sum;
half of each row or column sums to half of the magic sum; the four corner entries together with the four middle entries add to the magic sum; in addition, each of the "bent rows" (as Franklin called them) have the magic sum. We still do not know what method Franklin used to construct his squares, and leave it for the reader to find other interesting properties.
127 is the 27th prime after 7. [Silva]
127 is the sum of the first (1*2+7) odd primes. [Beedassy]
127 Band is a successful Iranian music group. Their music can best be described as gypsy jazz folk, with an alternative sound.
127 = 10^2+3^3 = gives 127 = 2^2*5^2+3^3 where p1 appears three times, p2 twice and p3 once. 127 = 2^6+3^3+6^2 (palindromic) = p31 = pp11 = ppp5 = pppp3 = ppppp2 = pppppp1. 127 is the prime for which ((P1+...+pn)/pn) decreases for the first time. [Marot]
|
