## Find the Primes

Find the Primes – MathsBot A Beep test – 20 seconds to find all the prime numbers on each grid Click on one composite number and you lose.Learning Objectives and Skills Recognise Primes Recognise composite numbers Recognise Multiples

## Factorize – NCTM Illuminations

Visually explore the concept of factors by creating rectangular arrays. The length and width of the array are factors of your number. Enter factorizations in the white boxes to the right in the form: (number)×(number) (Use either the letter x Read More …

## Number Explorer – Visnos

Number Explorer Select a number and investigate its factors, prime factors, divisibility etc. Great way for upper KS2 to investigate number

## Product Brain Workout – MathPlayground

Product – Brain workout. Can you arrange the number discs to make the given product? 3 number discs placed along the same line must multiply to the target number. There are 2 challenging levels to try and endless puzzles to Read More …

## Envision Division – Mr Nussbaum

Envision Division This program will help you to envision the concept of division. Choose a number and make as many division problems as possible from that number. Use the handy draw tool to make groups from stars. For example, if Read More …

## 100 Square Spots

100 Square Spots. Interactive 100 square used for examining number facts and series up to a hundred Choose a colour, then start clicking on numbers. Click a number again to remove a spot. Hold down a menu colour to remove Read More …

## Prime Factoring – Toon University

Identify Primes or factors with the sieve

## Venn Diagram Factors – TeacherLEd

Sort the numbers into the Venn Diagram according to the factors you have chosen.

## Factor Tree – MathPlayground

Build a factor tree to show the prime factors of a number. Also fInd HCF or LCM

## Prime & Composite Numbers – E-Lab

This activity will find the factors of your chosen number, or will ask you to find the next prime number above the one given.