There’s something beautiful about small natural numbers, mainly about their relation to the human psyché.
I’m taking zero out, ’cause, even some says zero is natural, natural numbers are countable; I challenge you to count zero.
1 (one) is the unit, the origin. Without one there’s no one, everything starts with one; the first anything.
2 (two) is one plus one, and this simple operation is very meaningful:
- Two is the first one (2 = 1 + 1)
- after (2 = 1 + 1)
- the first number (2 = 1 + 1).
If you got a problem, you solve that problem; but if you got two problems, you’re obliged to generalise the solution for the first time.
Two is the first prime, the first even – the only even prime. The pair.
3 (three) is two plus one, and that’s meaningful too: three is the result of the simpliest operation (3 = 2 + 1) between the simpliest numbers. It’s the offspring, the odd one after one:
- The first Gaußsche prime;
- The first lucky prime;
- The first proth prime;
- The first Mersenne prime;
- The first Fermat prime.
4 (Four) is the first square after one, representing the square idea itself.
Four equals to the product of its own isometric sum elements (2 + 2 = 2 × 2). By the way: 4 = 2 + 2 = 2 × 2 = 2²
5 (five) is the number of elements of the smallest meaningful field. It’s the only untouchable odd number.
6 (six) is the first number that is neither a square not a prime number; the first perfect number. The hexagon has edges of the same size of its radio, making it the perfect natural bidimensional form.
7 (seven) is the only Mersenne safe prime, highly associated to luck in the Judeo-Christian culture, but not only.
8 (eight) the first cube after one, representing the 3-dimensionality itself. The only natural perfect power that’s one less than another perfect power.
Sphenic numbers have eight divisors.
Have you gotten any interesting natural number fact?