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All integers are either even or odd. A square has even multiplicity for all prime factors (it is of the form a 2 for some a). The first: 1, 4, 9, 16, 25, 36, 49, 64, 81, 100, 121, 144 (sequence A000290 in the OEIS). A cube has all multiplicities divisible by 3 (it is of the form a 3 for some a).
The aliquot sum of a power of two (2 n) is always one less than the power of two itself, therefore the aliquot sum of 64 is 63, within an aliquot sequence of two composite members (64, 63, 41, 1, 0) that are rooted in the aliquot tree of the thirteenth prime, 41. [2] 64 is: the smallest number with exactly seven divisors, [3]
All prime numbers from 31 to 6,469,693,189 for free download. Lists of Primes at the Prime Pages. The Nth Prime Page Nth prime through n=10^12, pi(x) through x=3*10^13, Random primes in same range. Interface to a list of the first 98 million primes (primes less than 2,000,000,000) Weisstein, Eric W. "Prime Number Sequences". MathWorld.
The terms in the product are called prime factors. ... [64] Also, any even ... (or all) prime factors is referred to as factorization of ...
In mathematics, a prime power is a positive integer which is a positive integer power of a single prime number.For example: 7 = 7 1, 9 = 3 2 and 64 = 2 6 are prime powers, while 6 = 2 × 3, 12 = 2 2 × 3 and 36 = 6 2 = 2 2 × 3 2 are not.
The n th term describes the length of the n th run ... All smaller positive integers can be represented as sums of distinct factors of the number. ... 64, 4096, 65536 ...
Moments later, the two smacked into one another, killing all 64 people on the plane, which was flying in from Wichita, Kansas, and the three service members aboard the Black Hawk.
Duodecimal: Base 12, a numeral system that is convenient because of the many factors of 12. Sexagesimal: Base 60, first used by the ancient Sumerians in the 3rd millennium BC, was passed down to the ancient Babylonians. See positional notation for information on other bases.