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72 in Roman Numerals

72 in Roman numerals is LXXII. It breaks down as LXX + II, which adds up to 70 + 2 = 72.

  • Roman numeral
    LXXII
  • Lowercase
    lxxii
  • Breakdown
    LXX + II
  • In words
    seventy-two
  • Binary
    1001000
  • Hexadecimal
    48

How to write 72 in Roman numerals

Roman numerals are built place by place, from the largest value to the smallest. For 72 the places are 70 (tens), 2 (ones).

  1. Write 70 as LXX.
  2. Write 2 as II.

Joined together, LXX + II gives LXXII.

72 digit by digit

PlaceValueNumeralRule used
tens70LXXthe five symbol plus two
ones2IIthe symbol repeated twice

Check LXXII by reading it back

Reading LXXII from left to right and adding the pieces: LXX = 70, II = 2. Together that is 70 + 2 = 72, so LXXII and 72 match.

Mistakes to avoid with LXXII

  • 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 LXXII never contains forms such as VX or LC.
  • Read LXXII 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 72

  • 72 is an even number and composite, with prime factors 23 x 32.
  • In binary 72 is 1001000 and in hexadecimal it is 48.
  • Written out, 72 is "seventy-two".
  • The digits of 72 add up to 9, so it is divisible by 3.

Where you will see 72 in Roman numerals

The number 72 appears as LXXII in the naming conventions of long running European sports tournaments. Athletic associations continue using Roman numerals for sequential editions to project tradition and prestige in their official branding.

Numbers near 72

NumberRoman numeral
70LXX
71LXXI
72LXXII
73LXXIII
74LXXIV

FAQ

What is 72 in Roman numerals?

72 is written LXXII in Roman numerals. It is built from LXX (70), II (2).

How do you write 72 in lowercase Roman numerals?

Lowercase Roman numerals use the same rules, so 72 is lxxii. Lowercase is common for page numbers in a book's preface and for outline levels.

How do I convert any number to Roman numerals?

Split the number into thousands, hundreds, tens and ones, write each part with the symbols I, V, X, L, C, D and M, then join them from largest to smallest. Or paste it into the Roman numeral converter, which also converts back.

More roman numerals