There are a few different rules that can make it easy to check if a number is divisible by another. In this lesson you will learn some of them such as,any number that ends in 0, 2, 4, 6, or 8 is divisible by 2, divisibility by 5 we...

This lesson provides real life applications for divisibility and prime numbers including the Cicada Cycle's use of prime numbers and Cryptography,encryption.

Learn what it means for polynomials to be factors of other polynomials or to be divisible by them.

This lesson focuses on factors and multiples; it explains each and provides practice activities and a quiz.

This lesson focuses on the distribution of large prime numbers. It offers a calculator to check numbers for prime and a calculator that allows you to create prime numbers. It also provides the history of methods find the distribution of...

This lesson focuses on the greatest common factors it poses real situations and asks students answer them and then it provides more information and more exercises.

This lesson features practical applications for finding the least common multiples.

This lesson focuses on prime numbers, numbers that can only be divided by one and itself. It explains the Fundamental Theorem of Arithmetic and the Sieve of Eratosthenes. Includes practice activities.

This lesson focuses on Fibonacci numbers, a pattern based on the sum of the two previous numbers. It offers examples and practice exercises using some form of Fibonacci numbers.

This lesson focuses on Pascal's Triangle, a number pyramid in which every cell is the sum of the two cells directly above. It contains all binomial coefficients, as well as many other number sequences and patterns.