H.C.F of two Co-prime numbers is:
1
0
2
None of these
The sum of the first five multiples of 6 is:
90
60
30
120
Prime factors of 140 are:
2 × 2 × 7
2 × 2 × 5
2 × 2 × 5 × 7
2 × 2 × 5 × 7 × 3
Common factors of 9 and 36 are
1, 3, 9
1, 4, 3, 5, 9
1,3,9
HCF of 120, 144 and 216 is:
38
24
144
Choose the Co-prime numbers from the following .
7 and 63
36 and 25
25 and 21
63 and 81
HCF of two numbers =
Product of numbers ÷ their L.C.M
Product of numbers × their L.C.M
Product of numbers
The greatest number that will divide 37, 50, 123 leaving remainder 1, 2 and 3 respectively is.
9
10
15
12
LCM of 81, 18 and 36 is:
81
162
324
36
The smallest number which when divided by 20, 25, 35 and 40 and leaves remainders as of 14, 19, 29 and 34 respectively is
1,394
1,404
1,664
1,406
