100
Number 100: Properties, Factors, and Mathematical Facts
Short answer
The number 100 is an even composite number with 9 positive divisors. Its prime factorization is 2² × 5². It is also an abundant number and a perfect square, which gives it several notable mathematical relationships.
Is 100 prime?
ClassificationCompositeParityEvenDivisor count9AbundanceAbundant
What is the prime factorization of 100?
Prime factorization
2 squared times 5 squared
What are the divisors of 100?
Divisor count
9
Divisor sum
217
Proper divisor sum
117
- 1
- 2
- 4
- 5
- 10
- 20
- 25
- 50
- 100
How is 100 classified?
Prime
CompositeLearn more →
Perfect square
YesLearn more →
Perfect cube
No
Fibonacci
No
Triangular
No
Power of two
No
How is 100 represented in other numeral systems?
Roots and powers
Square root
10 Exact
Cube root
4.641589 Approximate
Nearest lower square
100
Nearest higher square
121
Nearest lower cube
64
Nearest higher cube
125
What are the digit properties of 100?
Which numbers are related to 100?
Why these results are true
- 100 is composite because it has positive divisors other than 1 and itself.
- 100 is abundant because the sum of its proper divisors (117) is greater than 100.
Compare this number
FAQ for 100
- Is 100 prime?
- No
- What is the prime factorization of 100?
- 2² × 5²
- Is 100 a perfect square?
- Yes
- What is 100 in binary?
- 1100100
- What is 100 in Roman numerals?
- C