7700
Squawk 7700 declares a general emergency.
- Even
- Composite
Where 7700 fits
Why 7700 is special
It grants the aircraft absolute priority over all other traffic. Flight-tracking websites display 7700 automatically, which is why an emergency is often visible to the public before any announcement is made.
Factors & digit properties
- Divisors (36)
- 1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 25, 28, 35, 44, 50, 55, 70, 77, 100, 110, 140, 154, 175, 220, 275, 308, 350, 385, 550, 700, 770, 1100, 1540, 1925, 3850, 7700
- Prime factorisation
- 2^2 × 5^2 × 7 × 11
- Digit sum
- 14
- Digital root
- 5
Representations
- Decimal
- 7700
- Binary
- 1111000010100
- Octal
- 17024
- Hexadecimal
- 1e14
- Scientific notation
- 7.700 × 10^3
Other mathematical patterns
- Abundant number
- Harshad (Niven) number
Related numbers & connections
A general emergency and a radio failure. Flight-tracking sites display both automatically, which is why an in-flight emergency is often public before any airline statement.
View 7600 →Two ways of declaring an emergency: a satellite-tracked distress beacon, and a transponder code that tells every radar screen in range. One works anywhere on Earth, the other only where radar reaches.
View 406 →Technology & computing
7700 declares a general emergency and grants absolute priority over all other traffic. Public flight-tracking sites display it automatically, which is why an emergency in the air is frequently known to the internet before any airline statement.
DocumentedTechnology & computing
Common questions
Is 7700 a prime number?
No, 7700 is not prime.
What are the factors of 7700?
The factors of 7700 are 1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 25, 28, 35, 44, 50, 55, 70, 77, 100, 110, 140, 154, 175, 220, 275, 308, 350, 385, 550, 700, 770, 1100, 1540, 1925, 3850, 7700.
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