Cien means one hundred in Spanish. It is used when referring to exactly 100.
- 100 = cien
When you count beyond 100, the form changes slightly: ciento is used as a prefix for numbers 101 to 199.
- 101 = ciento uno
- 115 = ciento quince
- 199 = ciento noventa y nueve
For multiples of 100 beyond one (like 200, 300...), Spanish uses a different root: ciento is not repeated; instead, you use the base number + -cientos (adjusted for gender).
- 200 = doscientos
- 300 = trescientos
- 400 = cuatrocientos
Summary:
- 100 = cien
- 101-199 = ciento + [number]
- 200, 300... = [number] + cientos
cien
ciento uno
doscientos