This week, we have been finding factors of a number. A factor is a number that divides another equally, with no remainders.
For example:
Factors of 12 – 1, 2, 3, 4, 6, 12
Factors of 15 – 1, 3, 5, 15
We have been also identifying common factors.
So, common factors of 12 and 15 are 1 and 3.
In addition to this, we have learnt what makes a prime number. A prime number is a number that is only divided by itself and 1.
Help at home – What are the factors of 45/36/9? Can you list all the prime numbers up to 20? List all the prime number between 30 and 40. What is a common factor?