322
322 is a Lucas number.
- Even
- Composite
Where 322 fits
Why 322 is special
The Lucas sequence follows the same rule as Fibonacci from a different start, and the two are deeply linked: Lucas numbers are sums of Fibonacci neighbours. The golden ratio governs both.
Factors & digit properties
- Divisors (8)
- 1, 2, 7, 14, 23, 46, 161, 322
- Prime factorisation
- 2 × 7 × 23
- Digit sum
- 7
- Digital root
- 7
Representations
- Decimal
- 322
- Binary
- 101000010
- Octal
- 502
- Hexadecimal
- 142
- Roman numeral
- CCCXXII
- Scientific notation
- 3.220 × 10^2
Other mathematical patterns
- Deficient number
- Harshad (Niven) number
- Lucas number
Mathematics
Lucas numbers use Fibonacci's rule starting 2, 1 instead of 1, 1, and each is the sum of the Fibonacci numbers either side of it. Both converge on the golden ratio at the same speed.
DocumentedMathematics
Common questions
Is 322 a prime number?
No, 322 is not prime.
What are the factors of 322?
The factors of 322 are 1, 2, 7, 14, 23, 46, 161, 322.
What is 322 in Roman numerals?
322 in Roman numerals is CCCXXII.
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