Test: Factors II - Normal

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Question 1:   Solve: 16 + 25
9
11
41
6.4
Question 2:   Solve: 2 2 3 2 5 2
60
900
800
100
Question 3:   Which of the following sets of numbers are factors of   54 ?
1,2,3,9,12,24,27,54
1,2,6,9,14,18,27,54
1,2,3,6,9,18,27,54
1,2,3,6,12,27,54
Question 4:   Which of the following sets of numbers are factors of   46 ?
1,2,6,8,46
1,2,23,46
1,2,4,6,9,46
1,2,3,12,46
Question 5:   Which of the following sets of numbers are prime numbers?
11,17,53
3,7,14
13,19,51
5,23,57
Question 6:   Which of the following sets of numbers are factors of 18 ?
1,2,3,4,6,9
1,2,3,9,12,18
2,3,4,6,9
1,2,3,6,9,18
Question 7:   7 is a factor of which of the following sets of numbers?
42,77,84
7,21,27
28,41,56
21,49,57
Question 8:   Which of the following sets of numbers are prime factors of 120 ?
2,3,7
2,3,5
1,2,3,5
1,2,3,7
Question 9:   Find LCM (the lowest common multiple) of   45  and   55
365
245
495
110
Question 10:   Find HCF (the highest common factor) of   60  and   75
10
5
25
15