The number 1 symbolized unity and the origin of all things, since all other numbers can be created from 1 by adding enough copies of it.
For example, 7 = 1 + 1 + 1 + 1 + 1 + 1 + 1.
In a nutshell 1 is an odd number which is uniquely neither prime nor composite.
It is known as the multiplicative identity or unit.
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It’s also the only positive number with no other divisors.
one 1 of 3 adjective ˈwən ˌwən 1 : being a single unit or thing see number 2 : being a certain unit or thing
