707
The Boeing 707 made intercontinental jet travel ordinary.
- Odd
- Composite
Where 707 fits
Why 707 is special
It was not the first jet airliner — the Comet was — but it was the first commercially successful one, and the Comet's fatal metal-fatigue failures around square windows are why every airliner window since has been rounded.
707 is part of
Factors & digit properties
- Divisors (4)
- 1, 7, 101, 707
- Prime factorisation
- 7 × 101
- Digit sum
- 14
- Digital root
- 5
Representations
- Decimal
- 707
- Scientific notation
- 7.070 × 10^2
Roman numerals
D C C V I I
Binary
1 0 1 1 0 0 0 0 1 1
1 × 512 + 0 × 256 + 1 × 128 + 1 × 64 + 0 × 32 + 0 × 16 + 0 × 8 + 0 × 4 + 1 × 2 + 1 × 1 = 707
Octal
1 3 0 3
1 × 512 + 3 × 64 + 0 × 8 + 3 × 1 = 707
Hexadecimal
2 c 3
2 × 256 + c × 16 + 3 × 1 = 707
Read as powers of two: 512 + 128 + 64 + 2 + 1 = 707.
In historical numeral systems
Egyptian
7 coils of rope, 7 strokes
7 × 100 + 7 × 1 = 707. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Babylonian
1 corner wedge + 1 vertical wedge (sixties place), 4 corner wedges + 7 vertical wedges (units place)
11 × 60 + 47 = 707. Places are separated by a space on the tablet, with the higher place written first.
Greek (Ionic)
psi, then zeta, marked as a numeral
psi-zeta + keraia
psi + 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 zayin
tav-shin-zayin
tav (400) + shin (300) + zayin (7) = 707, 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
- Semiprime
Related numbers & connections
The 707 made intercontinental jet travel ordinary and the 727 extended jets to airports with no ground equipment at all.
View 727 →Technology & computing
The Comet's square windows concentrated stress at the corners and caused fatal in-flight breakups. The 707 and everything after it uses rounded windows, which is one of the most visible legacies of a crash investigation.
DocumentedTechnology & computingPeriod: 1958
Common questions
Is 707 a prime number?
No, 707 is not prime.
What are the factors of 707?
The factors of 707 are 1, 7, 101, 707.
What is 707 in Roman numerals?
707 in Roman numerals is DCCVII.
About this page's data
Mathematical facts:computed directly from the number's value — nothing to source or verify externally.
Contextual records: 1 reviewer-confirmed record, sourced and reviewed before publication.
Last reviewed: 15 July 2026