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What is the Sum of First 850 Natural Numbers?

Arithmetic Progression (AP) Calculator

getcalc.com's Arithmetic Progression (AP) calculator, formula & workout to find what is the sum of first 850 natural numbers.
361675 is a sum of number series from 1 to 850 by applying the values of input parameters in the formula.

How to Find Sum of First 850 Natural Numbers?

The below workout with step by step calculation shows how to find what is the sum of natural numbers or positive integers from 1 to 850 by applying arithmetic progression. It's one of an easiest methods to quickly find the sum of any given number series.
step 1 Input parameters and values:
The number series 1, 2, 3, 4, . . . . , 849, 850.
The first term a = 1
The common difference d = 1
Total number of terms n = 850

step 2 apply the input parameter values in the formula
Sum = n/2 x (a + Tn)
= 850/2 x (1 + 850)
= 723350/2
1 + 2 + 3 + 4 + . . . . + 849 + 850 = 361675

Therefore, 361675 is the sum of positive integers upto 850.

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