Quinary (base-5 or pental) is a numeral system with five as the base. A possible origination of a quinary system is that there are five fingers on either hand.
| quinary (base 5) | quaternary (base 4) | quinary (base 5) | quaternary (base 4) |
|---|---|---|---|
| 1 | = 1 | 21 | = 23 |
| 2 | = 2 | 22 | = 30 |
| 3 | = 3 | 23 | = 31 |
| 4 | = 10 | 24 | = 32 |
| 10 | = 11 | 30 | = 33 |
| 11 | = 12 | 31 | = 100 |
| 12 | = 13 | 32 | = 101 |
| 13 | = 20 | 33 | = 102 |
| 14 | = 21 | 34 | = 103 |
| 20 | = 22 | 40 | = 110 |
Quaternary is the base-4 numeral system. It uses the digits 0, 1, 2 and 3 to represent any real number.
| quaternary (base 4) | quinary (base 5) | quaternary (base 4) | quinary (base 5) |
|---|---|---|---|
| 1 | ≈ 1 | 23 | ≈ 21 |
| 2 | ≈ 2 | 30 | ≈ 22 |
| 3 | ≈ 3 | 31 | ≈ 23 |
| 10 | ≈ 4 | 32 | ≈ 24 |
| 11 | ≈ 10 | 33 | ≈ 30 |
| 12 | ≈ 11 | 100 | ≈ 31 |
| 13 | ≈ 12 | 101 | ≈ 32 |
| 20 | ≈ 13 | 102 | ≈ 33 |
| 21 | ≈ 14 | 103 | ≈ 34 |
| 22 | ≈ 20 | 110 | ≈ 40 |
| quinary (base 5) | quaternary (base 4) |
|---|---|
| 1 | = 1 |
| 2 | = 2 |
| 3 | = 3 |
| 4 | = 10 |
| 10 | = 11 |
| 11 | = 12 |
| 12 | = 13 |
| 13 | = 20 |
| 14 | = 21 |
| 20 | = 22 |