Convert 1221 base five to decimal numerals l

Answer 1

1221 base five = (1 × 5^3) + (2 × 5^2) + (2 × 5^1) + (1 × 5^0)

= (1 × 125) + (2 × 25) + (2 × 5) + (1 × 1)

= 125 + 50 + 10 + 1

= 186