826
826 is the ISO 3166-1 numeric country code for United Kingdom.
- Even
- Composite
Where 826 fits
Why 826 is special
The UK's ISO letter code is GB rather than UK, a mismatch that causes recurring problems in software. The numeric code avoids the question entirely.
Factors & digit properties
- Divisors (8)
- 1, 2, 7, 14, 59, 118, 413, 826
- Prime factorisation
- 2 × 7 × 59
- Digit sum
- 16
- Digital root
- 7
Representations
- Decimal
- 826
- Binary
- 1100111010
- Octal
- 1472
- Hexadecimal
- 33a
- Roman numeral
- DCCCXXVI
- Scientific notation
- 8.260 × 10^2
Other mathematical patterns
- Deficient number
Related numbers & connections
Two numbers identifying the United Kingdom in different international systems: 826 in ISO 3166 and +44 in the telephone plan. Neither derives from the other, and both exist because a country needs an identifier that survives translation.
View 44 →Geography
826 is the United Kingdom's ISO numeric code. Its letter code is GB, which excludes Northern Ireland by name while including it in fact — an inconsistency the numeric code sidesteps.
DocumentedGeographyGeography: United Kingdom
Common questions
Is 826 a prime number?
No, 826 is not prime.
What are the factors of 826?
The factors of 826 are 1, 2, 7, 14, 59, 118, 413, 826.
What is 826 in Roman numerals?
826 in Roman numerals is DCCCXXVI.
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: 3 August 2026