252 can be expressed as a product of primes as ;

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1

252 can be expressed as a product of primes as ;

2

H.C.F. of 4 x 27 x 3125, 8 x y x 25 x 7 & 16 x 81 x 5 x 11 x 49 is :

3

The H.C.F. of 3666 and 3444 is :

4

The H.C.F. of 2/3, 8/9, 64/81 and 10/27 is :

5

The H.C.F. of 1.75, 5.6 and 7 is :

6

Three numbers are in the ratio 1:2:3 and their H.C.F. is 12. The numbers are :

7

Three numbers which are co-prime to each other are such that the product of the first two is 551 and that of the last two a 1073. The sum of the three numbers is :

8

Product, of two co-prime numbers is 117. Their L.C.M. should be :

9

The H.C.F. of two numbers is 23 and the other two factors of their L.C.M. are 13 and 14. The larger of the two numbers is :

10

The H.C.F. and L.C.M of two numbers are 11 and 385 respectively. If one number lies between 75 and 125, then that number is :

11

The maximum number of students among them 1001 pens and 910 pencils can be distributed in such a way that each student gets the same number of pens and same number of pencils is :

12

The least number which is a perfect square and is divisible by each of the numbers 10, 20 and 24, is

13

Find the least number which when divided by 16, 18, 20 and 25 leaves 4 as remainder in each case, but when divided by 7 leaves no remainder.

14

Six bells commence tolling together and toll at intervals of 2, 4, 6, 8, 10 and 12 seconds respectively. In 30 minutes, how many times do they toll together ?

15

252 can be expressed as a product of primes as :

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