In octal system 18 is written as ______?

In octal system 18 is written as ______?

Explanation

To convert 18 (decimal) to octal:

18 ÷ 8 = 2 remainder 2

2 ÷ 8 = 0 remainder 2

Reading the remainders from bottom to top, 18₁₀ = 22₈.