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?

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