How is the nth term found?

The nth term equals the first term times the common ratio raised to the power (n minus 1).

What if the ratio is 1?

When the ratio is 1 every term equals the first term, so the sum is simply n times the first term.

Find the nth term and the sum of a geometric progression.

First term (a₁)Common ratio (r)Number of terms (n)

8th term

4,374

Sum of 8 terms

6,560

Enter the first term, common ratio and number of terms to get the nth term and the sum of the sequence.

How is the nth term found?: The nth term equals the first term times the common ratio raised to the power (n minus 1).
What if the ratio is 1?: When the ratio is 1 every term equals the first term, so the sum is simply n times the first term.