Prime number
idea · 1 work · 3 mentions · 10 anchored passages
prime · prime number · primes · A prime number · prime numbers
in the texts
Elements
A number measured only by the unit; the basic indivisible building block of the numeric system in Book VII, central to several propositions on primality.
Let C measure them.
Therefore no number will measure B, A.
Therefore A, B are prime to one another.