800 in Roman Numerals

How to write 800 in Roman numerals

Roman numerals are built place by place, from the largest value to the smallest. For 800 the places are 800 (hundreds).

1. Write 800 as DCCC.

Joined together, DCCC gives DCCC.

800 digit by digit

Check DCCC by reading it back

Reading DCCC from left to right and adding the pieces: DCCC = 800. Together that is 800, so DCCC and 800 match.

Mistakes to avoid with DCCC

• Never repeat a symbol more than three times in a row. When a fourth would be needed, the subtractive form takes over.
• Only I, X and C may be placed before a larger symbol to subtract, so DCCC never contains forms such as VX or LC.
• Read DCCC as one number, not letter by letter: add the values left to right, except where a smaller symbol sits before a larger one.

Facts about the number 800

• 800 is an even number and composite, with prime factors 2⁵ x 5².
• In binary 800 is 1100100000 and in hexadecimal it is 320.
• Written out, 800 is "eight hundred".
• The digits of 800 add up to 8.

Where you will see 800 in Roman numerals

The number 800, written as DCCC, appears on cornerstones of buildings constructed around that year to mark their founding date. Architects and stonemasons used Roman numerals for such inscriptions because the classical script conveyed permanence and formality.

Numbers near 800

More roman numerals

• 750 (DCCL): previous page
• 900 (CM): next page
• Roman numerals chart: the full list