Test: Factors I - Normal

Double click on maths expressions to zoom
Question 1:   What is LCM (the least common multiple) of 4 and 5 ?
10
12
15
20
Question 2:   What is LCM of 5 and 10 ?
10
5
20
50
Question 3:   What is LCM of 8 and 6 ?
40
32
24
48
Question 4:   Write 32 as a product of prime numbers
84
442
22222
2224
Question 5:   Write 40 as a product of prime numbers
2225
226
58
2235
Question 6:   Write 50 as a product of prime numbers
252
235
255
510
Question 7:   What is HCF (the highest common factor) of 15 and 20 ?
5
3
10
2
Question 8:   What is HCF of 48 and 24 ?
6
8
24
12
Question 9:   What is HCF of 27 and 18 ?
3
9
6
18
Question 10:   Solve 2 2 35
30
60
48
50