Triangular Number T(5)
Triangular Number T(5) is 15.
15
Formula
Tₙ = n × (n + 1) ÷ 2 — the sum of all integers from 1 to n.
Frequently Asked Questions
What is the Triangular Number T(5)?
15.
Triangular Number T(5) is 15.
Tₙ = n × (n + 1) ÷ 2 — the sum of all integers from 1 to n.
15.