Category Archives: Line chart

When the longest prime numbers were discovered

The line chart below shows when the longest prime numbers were discovered. Because the lengths vary greatly, a log axis is used.

The longest known prime number was discovered on Dec 26th, 2017 with a length of 23,249,425 digits, nearly 1 million digits longer than the previous record. The accelerated discovery of prime numbers is largely due to computing power and distribute computing projects like GIMPS.

Line chart showing longest prime numbers and when they were discovered

Line chart showing when the longest prime numbers were discovered

This chart was built with the Aploris add-in for PowerPoint on a Mac.

Has Game of Thrones reached it max viewership?

The line chart below shows total US viewership for each episode of Game of Thrones. The chart is broken into 6 section each representing a season. The delta bridge is used to show the percentage change in viewership from the start of one season to the beginning of the next.

Has Game of Thrones reached its peak viewership? Season 6 is showing a slight decrease though it could still end strong.

Game of Thrones viewership

Line chart showing Game of Thrones US viewership

This chart was built using the Aploris add-in with PowerPoint for Mac. Note that the delta bridge is a standard feature with Aploris and that percentages are automatically calculated.

Line chart showing social media adoption by age for American adults

The line chart below shows the percent of American adults who use social networking sites by age between 2005 and 2015. A separate line is used for each age group.

As expected, young adults (18-29) are most likely to use social networking sites. However, adoption for those 65 and older has significantly increased over the last 10 years.

Line chart showing social media use by age

Line chart showing social media usage by age group for American adults

The chart above was built using Aploris. Aploris is a plug-in for PowerPoint (Mac and PC) that enables the effective creation of a variety of insightful charts including waterfall and Mekko charts.