twin primes: pairs of primes such that both P and P+2 are primes
(5,7) (11,13) (17,19),(29,31),(41,43)
Cousin primes: pairs of primes such that P and P+4 are primes
(3,7) (7,11) (19,23) (37,41)
Prime numbers:
2,3,5,7,11,13,17,19,23,29,31,37,41,43
perfect numbers: numbers that is the sum of all its divisors
6=1+2+3
28=1+2+4+7+14
Fibonacci numbers:
0,1,2,3,5,8,13,21,34
obviously i only paid attention to those below 45
Gauss: "Mathematics is the queen of sciences and number theory is the queen of mathematics"
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