All Tools
1049+ free tools
Arithmetic Series Sum
Sum Sₙ = n/2 × (a₁ + aₙ) of an arithmetic series.
Series parameters
First term (a₁)
Common difference (d)
Number of terms (n)
29
Last term (aₙ)
155
Sum (Sₙ)
15.5
Average
S = n × (a₁ + aₙ) / 2 = 10 × (2 + 29) / 2
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