Test: Factors I - Normal

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