### Read and Write Roman Numeral XLII

Roman numeral symbols are written and read from left to right, from highest to lowest values. If XLII is text, it is the number 42.

### Miscellaneous & Conversions For 42

 Written English Fourty-Two Roman Numeral 42 XLII RGB Colour (# 02a or #00002a)

 Decimal / Number 42 Binary 101010 Ternary 1,120 Hexadecimal (Hex) 0x2a Quaternary 222 Quinary 132 Senary (Heximal) 110 Octal 52 Duodecimal (Dozenal) 36

### Mathematics

 Prime Factors: 2 x 3 x 7 = 42 Factorial: 42! 1.40500611775E+51 Harshad Number: 42 True Triangular Number Of 42 903 Square Root: √42 6.48074069841 Cube Root (Root 3): 3√42 3.47602664489 Tesseract Root (Root 4): 4√42 2.54572989502 Quintal / nth Root. (Root 5) 5√42 2.11178576497 ¾ Root 16.4982153378 Fibonnaci # 42 267914296 Recipricol 1/ 42 0.0238095238095 Quarter 1/4 10.50 or 10.50/42 Half 1/2 21 or 21/42 Third 1/3 14 or 14/42

### Roman Numeral Chart. Read & Write 42

Reading and writing roman numerals isn't common knowledge. However, this roman numeral chart should help you read and write numbers in roman numerals from 1 to 1,000,000. Using an overline symbol is times 1,000. ( Example: X means to add 3 zeros to your number. So X which is 5, but written as X with the overline is 5,000.

• When a symbol appears after a larger symbol it is added: Example: VI = V + I = 5 + 1 = 6
• When a symbol appears before a larger symbol it is subtracted: Example: IX = X - I = 10 - 1 = 9
• Do not use the same symbol more than 3 times. But, IIII is sometimes used for 4
 1 I 10 x 500 D 1,001 MI 2 II 20 XX 501 DI 1,002 MII 3 III 30 XXX 530 DXXX 1,030 MXXX 4 IV 40 XL 550 DL 1,550 MDL 5 V 50 L 600 DC 1,555 MDLV 6 VI 60 LX 650 DCL 5,000 V 7 VII 70 LXX 700 DCC 10,000 X 8 VIII 80 LXXX 800 DCCC 50,000 L 9 IX 90 XC 890 DCCCXC 100,000 C 10 X 95 XCV 900 CM 500,000 D 11 XI 99 XCIX 950 CML 1,000,000 M 12 XII... 100 C 1000 M
 39 XXXIX 37 XXXVII

2% Fibonacci
38% Numbers
20% Binary