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Hace 10 horas · 8 is the first proper Leyland number of the form xy + yx, where in its case x and y both equal 2. [4] 8 is the sum between the first pair of twin-primes ( 3, 5 ), and the only twin-prime sum that is not a multiple of 3 or 12. 8 is the sixth Fibonacci number and the first even, non-prime Fibonacci number.
Hace 10 horas · 5 (five) is a number, numeral and digit.It is the natural number, and cardinal number, following 4 and preceding 6, and is a prime number.. The first Pythagorean triple. Five is the third-smallest prime number, equal to the sum of the only consecutive positive integers to also be prime numbers (2 + 3).In integer sequences, five is also the second Fermat prime, and the third Mersenne prime ...
