97
97 is a prime number — the largest two-digit prime — and the atomic number of berkelium.
- Odd
- Prime
Where 97 fits
Why 97 is special
97's status as the largest two-digit prime makes it a small landmark: the last prime before the three-digit numbers begin.
97 is part of
Factors & digit properties
- Divisors (2)
- 1, 97
- Prime factorisation
- 97
- Digit sum
- 16
- Digital root
- 7
Representations
- Decimal
- 97
- Binary
- 1100001
- Octal
- 141
- Hexadecimal
- 61
- Roman numeral
- XCVII
- Scientific notation
- 9.700 × 10^1
Other mathematical patterns
- Deficient number
- Happy number
Related numbers & connections
97 and 96 are consecutive integers.
View 96 →Nearby in a sequence
- is adjacent to96
why?
Strength 0.50, confidence "high".
Science
97 is the atomic number of berkelium.
DocumentedScience
Mathematics
97 is prime — the largest two-digit prime number.
DocumentedMathematics
Common questions
Is 97 a prime number?
Yes, 97 is prime — it has exactly two positive divisors: 1 and itself.
What are the factors of 97?
The factors of 97 are 1, 97.
What is 97 in Roman numerals?
97 in Roman numerals is XCVII.
About this page's data
Mathematical facts:computed directly from the number's value — nothing to source or verify externally.
Contextual records: 2 reviewer-confirmed records, sourced and reviewed before publication.
Last reviewed: 15 July 2026