Other tags that relate to Factorial
Mathematical reasoning & proof. Divisibility. Place value. Factors and multiples. Multiplication & division. Number - generally. Properties of numbers. Working systematically. Addition & subtraction. Factorials.There are 6 results
Broad Topics > Thinking Mathematically > Mathematical induction
Obviously?
Age 14 to 18 Challenge Level:
Find the values of n for which 1^n + 8^n - 3^n - 6^n is divisible by 6.
Binomial Coefficients
Age 14 to 18
An introduction to the binomial coefficient, and exploration of some of the formulae it satisfies.
One Basket or Group Photo
Age 7 to 18 Challenge Level:
Libby Jared helped to set up NRICH and this is one of her favourite problems. It's a problem suitable for a wide age range and best tackled practically.
Walkabout
Age 14 to 16 Challenge Level:
A walk is made up of diagonal steps from left to right, starting at the origin and ending on the x-axis. How many paths are there for 4 steps, for 6 steps, for 8 steps?
Counting Binary Ops
Age 14 to 16 Challenge Level:
How many ways can the terms in an ordered list be combined by repeating a single binary operation. Show that for 4 terms there are 5 cases and find the number of cases for 5 terms and 6 terms.
Symmetric Tangles
Age 14 to 16
The tangles created by the twists and turns of the Conway rope trick are surprisingly symmetrical. Here's why!
NRICH is part of the family of activities in the Millennium Mathematics Project.