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Kim has a big round cheese, and an even bigger knife. With three straight cuts, what’s the largest number of pieces she can cut?

Do you have a mathematician in your life? Chances are, they’re a big fan of the number Pi. Celebrate Pi Day with them on 14 March!

Last October, an amateur mathematician named Luke Durant discovered the largest known prime number, M136279841, a number with more than 41 million digits. Luke used a global network of computers powered by Graphics Processing Units (GPUs), which are widely used in developing artificial intelligence algorithms. Luke’s breakthrough marked the first use of this technology to uncover a prime of this size.

An adventurous snail decides to climb up a wall to the roof of a school. The snail can climb up 3 metres in a day but slides back down 2 metres at night! If the school is 12 metres tall, how many days will it take the snail to reach the roof?

Sam arrives first to her after school Maths Club meeting. She discovers that her teacher has left a basket of Valentine’s Day chocolates. It comes with the instructions to share the chocolate evenly among the six students in the club… but Sam eats a few chocolates before anyone notices!

Rita is making lamingtons for her birthday party and cuts them precisely into 5-centimetre cubes. While playing around with an antique balance scale, she discovers that one lamington is equal to 50 grams plus half a lamington. At her party, she eats one and a half lamingtons. How much did Rita’s dessert weigh?

Here are eight 8s, 8 8 8 8 8 8 8 8. Put some plus signs in there to make 1000.

Farmer Doolittle has a farm with just cows and chickens. The farmer counts up all the animals and discovers that there are 43 heads and 120 legs on the farm (not counting the farmers). How many cows live on farmer Doolittle’s farm?

We’ve written a code using two different prime numbers less than 10. We then multiplied these two primes and used the resulting “code number” to shift the alphabet forward to new letters. Can you use the clues above to decode this message: DRO QYVN SC LEBSON SX DRO QKBNOX.

The biggest ever prime number has just been found and it’s absolutely massive. It’s a number with more than 41 million digits. That means, if you were to type it out in size 12 font, it would be more than 8,000km long! That’s about the distance from Melbourne to Tokyo.