# 21123

The numbers with a 3 subscript use Base 3 Ternary notation.

For more familiar numbers: See Sixty-Eight in Base 10 Decimal

## Nearby Numbers

Positive, nonzero integers within three units

65
21023
Sixty-Five in Base 3 Ternary
66
21103
Sixty-Six in Base 3 Ternary
67
21113
Sixty-Seven in Base 3 Ternary
69
21203
Sixty-Nine in Base 3 Ternary
70
21213
Seventy in Base 3 Ternary
71
21223
Seventy-One in Base 3 Ternary

## Scientific Notation

Scientific notation expresses a quantity as the product of its significand with 10 raised to an integer exponent.

## Reciprocal

A number multiplied with its reciprocal is one.

### `0.00010120111002210001012011100221000023`

The reciprocal of 68 in Base 3 Ternary.

## Palindrome?

A numerical palindrome has the same value when all of its digits are reversed.

The number 21123 is a palindrome.

## Not A Prime Number

A prime number is a positive integer that is divisible only by itself and one.

Sixty-eight is a composite number with 6 total factors (including 1 and itself).   See primes in Base 3 Ternary

## A Composite

Composites have more than just these two factors.

Sixty-eight is a composite number with 6 total factors (including 1 and itself).

## Prime Factors

The prime factors of a positive integer are the integers that divide it exactly and are also prime.

The number sixty-eight has the following 2 prime factors:

2
23
Two in Base 3 Ternary
17
1223
Seventeen in Base 3 Ternary

## Prime Factorization

The prime factorization of a positive integer is the unique list of prime factors together with their multiplicities

## Base Conversions

The number sixty-eight in 35 different bases