Test: Factors I - Normal

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