The duodecimal system, also known as base twelve or dozenal, is a positional numeral system using twelve as its base. In duodecimal, the number twelve is denoted "10", meaning 1 twelve and 0 units; in the decimal system, this number is instead written as "12" meaning 1 ten and 2 units, and the string "10" means ten. In duodecimal, "100" means twelve squared, "1000" means twelve cubed, and "0.1" means a twelfth.
A multiple birth is the culmination of one multiple pregnancy, wherein the mother gives birth to two or more babies. A term most applicable to vertebrate species, multiple births occur in most kinds of mammals, with varying frequencies. Such births are often named according to the number of offspring, as in twins and triplets. In non-humans, the whole group may also be referred to as a litter, and multiple births may be more common than single births. Multiple births in humans are the exception and can be exceptionally rare in the largest mammals.
A composite number is a positive integer that can be formed by multiplying two smaller positive integers. Accordingly it is a positive integer that has at least one divisor other than 1 and itself. Every positive integer is composite, prime, or the unit 1, so the composite numbers are exactly the numbers that are not prime and not a unit. E.g., the integer 14 is a composite number because it is the product of the two smaller integers 2 × 7 but the integers 2 and 3 are not because each can only be divided by one and itself.
111 is the natural number following 110 and preceding 112.
69 is the natural number following 68 and preceding 70. An odd number and a composite number, 69 is divisible by 1, 3, 23 and 69.
58 (fifty-eight) is the natural number following 57 and preceding 59.
101 is the natural number following 100 and preceding 102.
120 is the natural number following 119 and preceding 121.
127 is the natural number following 126 and preceding 128. It is also a prime number.
A powerful number is a positive integer m such that for every prime number p dividing m, p2 also divides m. Equivalently, a powerful number is the product of a square and a cube, that is, a number m of the form m = a2b3, where a and b are positive integers. Powerful numbers are also known as squareful, square-full, or 2-full. Paul Erdős and George Szekeres studied such numbers and Solomon W. Golomb named such numbers powerful.
121 is the natural number following 120 and preceding 122.
126 is the natural number following 125 and preceding 127.
149 is the natural number between 148 and 150.
4B3T, which stands for 4 (four) binary 3 (three) ternary, is a line encoding scheme used for ISDN PRI interface. 4B3T represents four binary bits using three pulses.
In mathematics, a Ruth–Aaron pair consists of two consecutive integers for which the sums of the prime factors of each integer are equal:
288 is the natural number following 287 and preceding 289. Because 288 = 2 · 12 · 12, it may also be called "two gross" or "two dozen dozen".
Sonnet 126 is one of 154 sonnets by William Shakespeare. It is the final member of the Fair Youth sequence, in which the poet shows how Time and Nature coincide.
In number theory, the Fermat–Catalan conjecture is a generalization of Fermat's Last Theorem and of Catalan's conjecture. The conjecture states that the equation
The Tlowitsis Nation, formerly the Klowitsis Tribe, the Turnour Island Band and the Tlowitsis-Mumtagila First Nation, is the Indian Act band government of the Ławit'sis (Tlowitsis) tribe of the Kwakwaka'wakw peoples, located in the Queen Charlotte Strait-Johnstone Strait area in the Discovery Islands between Vancouver Island and the British Columbia mainland in Canada. Ławit'sis territory covers parts of northern Vancouver Island, Johnstone Strait, and adjoining inlets of the mainland. Kalugwis, on Turnour Island, was their principal community in times past, but the band's offices are in the city of Campbell River to the southeast. Hanatsa IR No. 6 on Port Neville is the most populated of the band's Indian reserves.
NGC 125 is a lenticular galaxy located in the constellation Pisces. It is designated as subclass Sa Ring in the galaxy morphological classification scheme. It lies approximately 235 million light-years away.
