All Tools
1049+ free tools
Geometric Series Sum
Finite Sₙ = a₁(rⁿ − 1)/(r − 1) and infinite S = a/(1 − r).
Series parameters
First term (a₁)
Common ratio (r)
Number of terms (n)
189
Finite sum Sₙ
diverges
Infinite sum (|r|<1)
S = a₁ × (rⁿ − 1) / (r − 1)
Copy
Related math tools
Prime Number Checker
Check if number is prime, show next/prev primes
Prime Number Generator
Generate N prime numbers
Prime Factorization
Factor a number into primes
GCD Calculator
Greatest common divisor of two numbers