Sum of Series 1+2+3+…+n C Program

C Program To Print Sum of Series 1+2+3+4+…+n

Here, we have listed How To Print The Sum of Series of Numbers in the format 1 + 2 + 3 + … + n in C Programming Language. It is important that we should know about the How A For Loop Works before getting further with the C Program Code.

We have listed following Methods To Find The Sum of Sequence in C Programming:

  • Addition of Series without Function
  • Sum of Sequence with Function

In this C Program, we take a Limit as an Input from the user. Suppose, if the user enters the Limit as 5, the program will calculate the Sum of Series starting from Number 1 to 5.


1 + 2 + 3 + 4 + 5 = 15

Also Read: Sum of Sequence: 1 + 1/2 + 1/4 + 1/8 + …. + 1/n C Program

Method 1: Find Addition of Sequence without Function in C

Also Read: Addition of Series: 1 + 1/2 + 1/3 + 1/4 + …. + 1/n C Program

Method 2: Calculate Sum of Sequence using Function in C


C Program to find Sum of Series 1+2+3+..+n

If you have any compilation errors or doubts in this C Program To Find Addition of Series, let us know about it in the Comment Section below.

Tushar Soni

I am Tushar Soni, Co - Founder of CodingAlpha. I am a computer science student from India and passionate about Web Development and Programming. Connect with me on Facebook | LinkedIn | Google Plus

One thought on “Sum of Series 1+2+3+…+n C Program

  • September 13, 2016 at 10:36 pm

    Thanks. This is really amazing. I could finally solve my college assignment.


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