### Wiktionary(0.00 / 0 votes)Rate this definition:

A fifteenth

Based on the number 15; using the digits 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D and E.

3. Origin: penta- + decimal

### Freebase(0.00 / 0 votes)Rate this definition:

Pentadecimal is the positional numeral notation system based on the number fifteen. Comparatively, the decimal system is based on the number ten, the hexadecimal system is based on the number sixteen, and so on. Another name used for the base-15 system is quindecimal. Pentadecimal requires fifteen symbols. Since there are only ten common decimal digits, the notation can be extended by using letters A, B, C, D and E to represent values 10, 11, 12, 13 and 14, respectively. For example, decimal values 0 to 20 in pentadecimal would be: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, 10, 11, 12, 13, 14, 15. The pentadecimal number 373 would be 783 in decimal. This numeric base is infrequently used. It finds applications in mathematics as well as fields such as telephony routing over IP and other specialized uses.

### Numerology

1. Chaldean Numerology

The numerical value of pentadecimal in Chaldean Numerology is: 8

2. Pythagorean Numerology

The numerical value of pentadecimal in Pythagorean Numerology is: 4

# Translation

#### Find a translation for the pentadecimal definition in other languages:

Select another language:

# Citation

## Use the citation below to add this definition to your bibliography:

Style:MLAChicagoAPA