An Octal Number uses only these 8 digits: 0, 1, 2, 3, 4, 5, 6 and 7
Examples:
• 7 in Octal equals 7 in the Decimal Number System
• 10 in Octal equals 8 in the Decimal Number System
• 11 in Octal equals 9 in the Decimal Number System
...
• 167 in Octal equals 119 in the Decimal Number System
...
Also called Base 8
Try it yourself (press play button):
../numbers/images/number-odometer.js?mode=8