# What is the common difference of 1, 2, 4, 8, 16,...?

##### 1 Answer

This sequence has a common ratio (

#### Explanation:

Arithmetic sequences have a common difference. That is, the difference between any two consecutive terms is constant.

For example:

#5, 8, 11, 14, 17#

is an arithmetic sequence with common difference

We note that:

#8-5 = 11-8 = 14-11=17-14 = 3#

Geometric sequences have a common ratio. That is, the ratio between any two consecutive terms is constant.

For example:

#1, 2, 4, 8, 16#

is a geometric sequence with common ratio

We note that:

#2/1 = 4/2 = 8/4 = 16/8 = 2#

The infinite sequence