1. Whole Numbers
iGCSE (2021 Edition)
1.11 Prime factorisations
Interactive practice questions
Select the two prime numbers from the list below.
$9$9
A
$12$12
B
$5$5
C
$8$8
D
$2$2
E
$10$10
F
Easy
< 1min
Select the three prime numbers from the list below.
Easy
< 1min
Select the two prime numbers from the list below.
Easy
< 1min
A number has the following factor tree:
Easy
< 1min
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