Divisibility? What is that? Divisibility is when we divide number A by number B and the remainder is zero. In this case we say that A is divisible by B. For example, is 1368 divisible by 6? To find out we divide 1368 by 6: When we divide it we see that the remainder […]

Jan 09

Dec 30
Today we are going to learn about prime numbers and composite numbers. What is a prime number? A prime number is a number (greater than 1) that is only divisible by 1 and itself. What are composite numbers? They are numbers (greater than 1) that are not prime. They are divisible by 1, by itself […]

Dec 26
In this post we are going to learn what the Greatest Common Factor (GCF) is and how to calculate it. What is the Greatest Common Factor (GCF)? It is the biggest number that divides exactly into two or more numbers. Terms: Factor: A factor of a number is a number that divides evenly into the […]

Dec 21
In this post, we are going to see what the least common multiple is and how to calculate it. The least common multiple (LCM) of two or more numbers is the smallest number (not counting 0) which is a multiple of all of the numbers. In order to better understand this definition, we are going […]

Dec 16
In this post, we are going to learn and practice the divisibility guidelines for 2, 5, and 10. Divisibility Guidelines for 2 In order to know if a number is divisible by 2, you have to check whether it is an even number. If it is even, it is divisible by 2. The even numbers […]