One

Object 'One' belongs to the 'Numbers' theme.

Connection to Zero:

One is equal to the number of numbers less-than-or-equal-to-zero. One is the successor of zero. As a set (in the usual construction of the naturals), zero is the lone element of one. One and zero are often seen together in the pathological construction, "one divided by zero". Anything to the zeroth power equals one.

Metrics
Parity One: odd. Zero: even.

Connection to Two:

Two is the successor of one. There are many relationships between the two numbers: 2=1+1, 2*1=1, 2^1=2, 1^2=1, and so on. In C notation, 2=1<<1.

Metrics
Parity One: odd. Two: even.

Connection to Three:

3=1+1+1. Three is the next odd number after one.

Metrics
Parity One: odd. Three: odd.

Connection to Five:

As digits, 5 and 1 combine to form 15, which is heavily over-represented in everyday use (as opposed to how often one would expect it to appear based on sheer probability).

1 and 5 both appear in the standard form of the golden ratio (along with 2).

Metrics
Parity One: odd. Five: odd.

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