747
747 refers to the Boeing 747, the first wide-body 'jumbo jet,' which entered commercial service in 1970 and remained the world's largest passenger aircraft for over 30 years.
- Odd
- Composite
Where 747 fits
Why 747 is special
The Boeing 747 revolutionised commercial aviation when it entered service in 1970 — its distinctive hump and four-engine wide-body design made mass long-haul air travel practical, and it held the title of the world's largest passenger aircraft until the Airbus A380 arrived in 2005.
Same number, different meanings
How 747 is understood across different contexts — never implying one meaning because of another.
- Mathematics
The Boeing 747 revolutionised commercial aviation when it entered service in 1970 — its distinctive hump and four-engine wide-body design made mass long-haul air travel practical, and it held the title of the world's largest passenger aircraft until the Airbus A380 arrived in 2005.
- Technology & computing
The 747's raised cockpit exists so the nose could hinge upward for freight, because Boeing assumed supersonic aircraft would take passenger traffic and the 747 would end up carrying cargo. Supersonic travel never took over, and the hedge flew passengers for over fifty years.
- Culture
Since 1990, the United States Air Force has used specially configured Boeing 747s, designated VC-25, as Air Force One when the President is aboard — making the aircraft type globally recognisable beyond commercial aviation.
Factors & digit properties
- Divisors (6)
- 1, 3, 9, 83, 249, 747
- Prime factorisation
- 3^2 × 83
- Digit sum
- 18
- Digital root
- 9
Representations
- Decimal
- 747
- Scientific notation
- 7.470 × 10^2
Roman numerals
D C C X L V I I
DCCXLVII uses the subtractive pair XL: ten before fifty — fifty minus ten.
Binary
1 0 1 1 1 0 1 0 1 1
1 × 512 + 0 × 256 + 1 × 128 + 1 × 64 + 1 × 32 + 0 × 16 + 1 × 8 + 0 × 4 + 1 × 2 + 1 × 1 = 747
Octal
1 3 5 3
1 × 512 + 3 × 64 + 5 × 8 + 3 × 1 = 747
Hexadecimal
2 e b
2 × 256 + e × 16 + b × 1 = 747
Read as powers of two: 512 + 128 + 64 + 32 + 8 + 2 + 1 = 747.
In historical numeral systems
Egyptian
7 coils of rope, 4 hobbles, 7 strokes
7 × 100 + 4 × 10 + 7 × 1 = 747. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Babylonian
1 corner wedge + 2 vertical wedges (sixties place), 2 corner wedges + 7 vertical wedges (units place)
12 × 60 + 27 = 747. Places are separated by a space on the tablet, with the higher place written first.
Greek (Ionic)
psi, then mu, then zeta, marked as a numeral
psi-mu-zeta + keraia
psi + mu + zeta written in descending order and added — the letters carry their values wherever they stand, so this is addition, not place value.
Hebrew numerals
tav, then shin, then mem, then zayin
tav-shin-mem-zayin
tav (400) + shin (300) + mem (40) + zayin (7) = 747, written in descending order.
Systems that simply cannot reach this value are left out. Where a script needs a font most readers do not have, the reading is given instead of the glyphs — see number systems for each system in full.
Other mathematical patterns
- Palindromic number
- Deficient number
Related numbers & connections
747's digits sum to 18 (divisible by 9), confirming it's a multiple of 9 under the standard divisibility rule (9 × 83 = 747).
View 9 →The Boeing 747 model number is used as the aircraft's name in ordinary speech, which few identifiers achieve.
The most-produced jet airliner and the first wide-body. The 737's low-slung airframe, designed in the 1960s, is what made fitting modern engines difficult enough to drive the MAX changes.
View 737 →Technology & computing
The 747's raised cockpit exists so the nose could hinge upward for freight, because Boeing assumed supersonic aircraft would take passenger traffic and the 747 would end up carrying cargo. Supersonic travel never took over, and the hedge flew passengers for over fifty years.
DocumentedTechnology & computingThe Boeing 747, nicknamed the 'Jumbo Jet', entered commercial service in 1970 as the first wide-body airliner and remained the world's largest passenger aircraft for over three decades.
DocumentedTechnology & computingPeriod: entered service 1970
Culture
Since 1990, the United States Air Force has used specially configured Boeing 747s, designated VC-25, as Air Force One when the President is aboard — making the aircraft type globally recognisable beyond commercial aviation.
DocumentedCultureGeography: United StatesPeriod: since 1990
Common questions
Is 747 a prime number?
No, 747 is not prime.
What are the factors of 747?
The factors of 747 are 1, 3, 9, 83, 249, 747.
What is 747 in Roman numerals?
747 in Roman numerals is DCCXLVII. XL is subtractive: ten before fifty — fifty minus ten. Written additively it would be DCCXXXXVII, which Roman inscriptions used freely — the strict subtractive form is a later convention.
About this page's data
Mathematical facts:computed directly from the number's value — nothing to source or verify externally.
Contextual records: 3 reviewer-confirmed records, sourced and reviewed before publication.
Last reviewed: 15 July 2026