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Delta Modern Language Schools
Maths Department
Prim 4 2023-2024
Unit (6): Factors and multiple
Lesson 1 : Identifying factors of whole
numbers – prime and composite numbers
A factor is : a number multiplied by another number to get a product
2 × 9 = 18
Factor Factor Product
You can arrange the factors of numbers by different
waysFor example: - factors of 18
Factor tree factor rainbow
1 18 12 9 18
2 69 3 6
3
Factor T chart
1 18
29
36
prime and composite numbers :
Prime number is : a whole number greater than 1 and has
exactly two different factors 1 and itself Ex: - 2 , 3 , 5
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