4 4-2-0 4-4-0 4-6-0 4 Vesta 4th century ASCII Avogadro's law Beryllium Calcium Channel 4 Diamond Douglas DC-4 F-4 Phantom II FM Consolidated line Floppy disk Four color theorem Glucose Hong Kong John F. Kennedy assassination Mars Mozilla Firefox Normal distribution On the Origin of Species OpenOffice.org Pirates of the Caribbean (film series) Pliocene Shrek (film series) Silver Supply and demand Tesseract The Beatles Tiananmen Square protests of 1989 Titanic (1997 film) Ubuntu University
40 Alcohol Potassium Super Bowl XL Zirconium
4077th M*A*S*H (TV series)
40b Alcohol
40th Ronald Reagan
41 George H. W. Bush Niobium
4+1 Channel 4
41st George H. W. Bush
42 Molybdenum Orion Nebula
4291 One Foot in the Grave
42nd Bill Clinton
43 George W. Bush Technetium
430 Boeing 747
433 Who Wants to Be a Millionaire?
43d Elizabethan Poor Law (1601)
43rd George W. Bush
44 Ruthenium S-mine
44m Floppy disk
45 Jacobite rising Pleiades Rhodium
454 Andromeda Galaxy
4555 Neighbours
458 Speed of light Upsilon Andromedae
46 1946 Boeing 747 Palladium
464f Mozilla Firefox
4664 Nelson Mandela
47 47 Ursae Majoris 47 Ursae Majoris b AK-47 Down syndrome ROT13 Silver
47s AK-47
47th Pythagorean theorem
48 Cadmium
4800 SAT
49 China Indium Proxima Centauri
492 The Marriage of Figaro
4ac Quadratic equation
4b F-4 Phantom II
4b5 Boeing 747
4c Colditz Castle F-4 Phantom II
4ct Four color theorem
4d F-4 Phantom II
4e F-4 Phantom II
4ej F-4 Phantom II
4g F-4 Phantom II
4hd Channel 4
4j F-4 Phantom II
4learning Channel 4
4od Channel 4
4pp13 Apple
4radio Channel 4
4row Barley
4s F-4 Phantom II
4talent Channel 4
4th 4th century Ancient Greece History of Christianity Maize Mars Plasma (physics) Tiananmen Square protests of 1989
4x Boiling point DVD