53
This number is a prime.
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The smallest prime that splits into a prime and the corresponding prime subscript (5 = p3). [Beedassy]
253 = 9007199254740992 is the smallest power of 2 with two successive 0's. [Beedassy]
The angle having a secant of 5/3 is very close to 53 degrees. [Beedassy]
The only prime consisting of two prime digits whose sum is the cube of their difference. [Beedassy]
There are 53 distinct ways of constructing hole-free
pentagonal shapes with the seven pieces of a tangram. [Beedassy]
The smallest prime equidistant between its adjacent primes
and separated from each by a prime number of consecutive
composites: [47], 48, 49, 50, 51, 52, [53], 54,
55, 56, 57, 58, [59]. [Beedassy]
The number of letters in the the following statement that
transcribes the
Fundamental Theorem of Arithmetic: "Any integer
beyond unity is either a prime or a product of primes." [Beedassy]
If a year starts on a Sunday in a non-leap year, or if
either of the first two days lands on a Sunday during a
leap year, then you end up with 53 Sundays. [Beedassy]
The highest prime factor in a list of 48 semiprimes
(by A. W. Johnson, 1978) the sum of whose reciprocals forms an
Egyptian fraction of unity: (1/2*3 + 1/2*5 + 1/2*7 + 1/2*11
+ 1/2*13 + 1/2*17 + 1/2*19 + 1/2*23 + 1/2*29 + 1/2*31 +
1/2*41 + 1/2*43) + (1/3*5 + 1/3*7 + 1/3*11 + 1/3*13 +
1/3*17 + 1/3*19 + 1/3*23 + 1/3*29 + 1/3*31 + 1/3*41) +
(1/5*7 + 1/5*11 + 1/5*13 + 1/5*17 + 1/5*19 + 1/5*23 +
1/5*31 + 1/5*43 + 1/5*53) + (1/7*11 + 1/7*13 + 1/7*17 +
1/7*19 + 1/7*29 + 1/7*41) + (1/11*17 + 1/11*19 + 1/11*29) +
(1/13*17 + 1/13*19 + 1/13*23 + 1/13*53) + (1/17*19 +
1/17*23 + 1/17*43 + 1/17*53) = 1. [Beedassy]
The Google group announced in October 2019 that a first milestone breakthrough in quantum computing called
quantum supremacy over classical devices has been achieved using a 53-qubit chip, i.e., that allows up to
253 computational states. [Beedassy]