We’ve gone crashing into October and that means it’s also #Mathober, an annual maths/art celebration taking place on the internet. If you’re into maths or art, or both, and would like to try producing something creative this month, on an informal schedule, #mathober provides a structure for you to do that.

Organised by Fractal Kitty (aka Sophia Wood), it’s been running for several years now, and the hashtag has been used across a variety of social media platforms, including Mastodon, BlueSky and Instagram. There’s already some cool stuff on there from day 1!

There’s a prompt for each day, and if you find it inspiring you can use it to produce and post a piece of maths-related creative output – which can be anything: images, sculpture, fibre crafts, computer graphics, creative writing, video, poetry, cartoons/comics, song lyrics, puzzles, or even cryptic crossword clues.

There’s no requirement to post on a regular schedule or even complete all the prompts, but it just provides a nudge for you to create something mathematical. The full list of prompts is below, and we’re looking forward to seeing what people share!

Read Sophia’s launch blog post about #mathober 2025

Visit the Mathober website for just the list of prompts