2207
2,207 is a Lucas number and a prime.
- Odd
- Prime
Where 2207 fits
Why 2207 is special
Lucas primes are as scarce as Fibonacci primes and for the same reasons. The two sequences share the recurrence, the golden ratio and the open question about how many primes each contains.
2207 is part of
Factors & digit properties
- Divisors (2)
- 1, 2207
- Prime factorisation
- 2207
- Digit sum
- 11
- Digital root
- 2
Representations
- Decimal
- 2207
- Scientific notation
- 2.207 × 10^3
Roman numerals
M M C C V I I
Binary
1 0 0 0 1 0 0 1 1 1 1 1
1 × 2,048 + 0 × 1,024 + 0 × 512 + 0 × 256 + 1 × 128 + 0 × 64 + 0 × 32 + 1 × 16 + 1 × 8 + 1 × 4 + 1 × 2 + 1 × 1 = 2,207
Octal
4 2 3 7
4 × 512 + 2 × 64 + 3 × 8 + 7 × 1 = 2,207
Hexadecimal
8 9 f
8 × 256 + 9 × 16 + f × 1 = 2,207
Read as powers of two: 2,048 + 128 + 16 + 8 + 4 + 2 + 1 = 2,207.
In historical numeral systems
Egyptian
2 lotuses, 2 coils of rope, 7 strokes
2 × 1,000 + 2 × 100 + 7 × 1 = 2,207. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Babylonian
3 corner wedges + 6 vertical wedges (sixties place), 4 corner wedges + 7 vertical wedges (units place)
36 × 60 + 47 = 2207. Places are separated by a space on the tablet, with the higher place written first.
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
- Deficient number
- Lucas number
- Safe prime
Mathematics
Whether either the Fibonacci or Lucas sequence contains infinitely many primes is unknown. Both questions are open, and both are easy to state and apparently very hard to settle.
DocumentedMathematics
Common questions
Is 2207 a prime number?
Yes, 2207 is prime — it has exactly two positive divisors: 1 and itself.
What are the factors of 2207?
The factors of 2207 are 1, 2207.
What is 2207 in Roman numerals?
2207 in Roman numerals is MMCCVII.
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