Test: Factors I - Challenging

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Question 1:   What is LCM (the Least Common Multiple) of 25 and 105 ?
1050
2625
250
525
Question 2:   What is LCM of 14 and 196 ?
392
196
2744
1372
Question 3:   What is LCM of 12,15
90
75
60
72
Question 4:   Write 108 as a product of prime numbers
22335
274
1111
22333
Question 5:   Write 99 as a product of prime numbers
23333
3311
33322
22311
Question 6:   Write 186 as a product of prime numbers
223311
33335
233511
2331
Question 7:   What is HCF (the Highest Common Factor) of 116,24 ?
4
1
12
2
Question 8:   What is HCF of 425 and 952 ?
85
1
68
17
Question 9:   What is HCF of 320 and 860 ?
320
20
40
32
Question 10:   Solve: 2 5 3 2 57
2520
5040
10080
10800