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5 is a natural number, as it is an integer greater than zero. It is a whole number, an integer, and a rational number.
A number can't be both less than 5 and greater than 10.
Given an arbitrary odd natural number greater than five, x, let y = x - 3, then y is an even number greater than 2. By assumption we have that y is the sum of two primes, say y1 and y2, but then x = y1 + y2 + 3 (which is the sum of three primes).
an odd number greater than 5 but less than 8 = 7
There is no such number.