This week in math, Group 1 is learning about something called the highest common factor. Basically, the highest common factor is the biggest number that can divide into two or more numbers exactly, without leaving anything left over.
To understand this better, think about what factors are. Factors are numbers that you can multiply together to make a bigger number. For example, if you multiply 6 by 8, you get 48. So, 6 and 8 are factors of 48.
When we talk about the highest common factor of two numbers, we are looking for the biggest number that can fit evenly into both of those numbers. For example, if you look at 12 and 18: the factors of 12 are 1, 2, 3, 4, 6, 12; and the factors of 18 are 1, 2, 3, 6, 9, 18. The biggest number that appears in both lists is 6. So, the highest common factor of 12 and 18 is 6. This means 6 is the largest number that divides evenly into both 12 and 18.
One interesting fact I learnt was if I taught students and learnt st getting good at finding the highest common factor it helps them to understand how numbers relate to each other and can be useful in many math problems, like simplifying fractions or dividing things into equal parts.