Two is the only
even prime number.
Considerably more important now as all computers are based on binary.
(Original computing machines were base 10 i.e. ten, binary introduced by Atanasoff ABC machine after machines of Von Nuemann and Turing)
Original computing machines were base 10 now they are base 10.
Considerable religious and political significance.
Trinity, Triad
Three Primary Colors:
Triangle: Symbol for 3 in early cultures
3 is the second triangle number
aside: T4 is how bowling balls arranged, T5 is how billiard balls arranged.
First composite number: 4 = 2x2.
Unique decomposition of prime factors.
Fundamental theorem of arithmetic.
Used to form Godel numbers. (Where uniqueness is a requirement).
Considerably more important now as all computers are based on binary.
(Original computing machines were base 10 i.e. ten, binary introduced by Atanasoff ABC machine after machines of Von Nuemann and Turing)
Original computing machines were base 10 now they are base 10.
Three
The first odd prime number. Considerable religious and political significance.
Trinity, Triad
Past, Present, Future.
Three Primary Colors:
"Humans" evolved 3
color receptors twice.
No need for a receptor in the IR.
No need for a receptor in the IR.
Triangle: Symbol for 3 in early cultures
3 is the second triangle number
aside: T4 is how bowling balls arranged, T5 is how billiard balls arranged.
Four
First composite number: 4 = 2x2.
Unique decomposition of prime factors.
Fundamental theorem of arithmetic.
Used to form Godel numbers. (Where uniqueness is a requirement).