| 38717 | The LCM of three numbers is four times their GCF | Medium | |
| 39294 | The sum of two numbers is 528 and their H.C.F is 33.The… | Medium | |
| 39480 | The H.C.F | Medium | |
| 39745 | The greatest common factor of 16 and the positive integer n is… | Medium | |
| 39906 | The HCF of two numbers is 40 and the other two factors… | Medium | |
| 40334 | The H.C.F of two numbers is 11 and their L.C.M is 7700 | Medium | |
| 40390 | Find the L.C.M of 22, 25, 44 and 20 | Medium | |
| 40469 | What is the least common multiple of 6, 18, and 24 | Medium | |
| 40487 | If a*b denotes the greatest common divisor of a and b, then… | Medium | |
| 40618 | The H.C.F | Medium | |
| 40799 | Two numbers have a H.C.F of 20 and a product of two… | Medium | |
| 41134 | The greatest common factor of 16 and the positive integer n is… | Medium | |
| 41145 | The greatest common factor of positive integers m and n is 15 | Medium | |
| 41372 | The H.C.F | Medium | |
| 41588 | HCF and LCM two numbers are 16 and 396 respectively | Medium | |
| 41854 | The greatest common factor of 16 and the positive integer n is… | Medium | |
| 42162 | The product of two numbers is 2028 and their H.C.F is 13 | Medium | |
| 42628 | The H.C.F of two numbers is 23 and the other two factors… | Medium | |
| 42710 | What is the HCF of 2/3, 5/9 and 6/5 | Medium | |
| 42719 | The H.C.F | Medium | |
| 43101 | If the L.C.M of two numbers is 750 and their product is… | Medium | |
| 43654 | The H.C.F | Medium | |
| 44169 | The H.C.F | Medium | |
| 44200 | The LCM of two numbers is 2310 and HCF is 47 | Medium | |
| 44510 | If y = 30p, and p is prime, what is the greatest… | Medium | |
| 44640 | The L.C.M of two numbers is 2310 and their H.C.F is 30 | Medium | |
| 44847 | If n is a positive integer and the greatest common divisor of… | Medium | |
| 45101 | The H.C.F | Medium | |
| 45217 | The H.C.F of two numbers is 11 and their L.C.M is 7700 | Medium | |
| 45220 | The H.C.F | Medium | |
| 45505 | If a and b are positive integers, and a=4b+16, the greatest common… | Medium | |
| 45922 | The greatest common factor of positive integers m and n is 9 | Medium | |
| 46991 | If the L.C.M of two numbers is 720 and their product is… | Medium | |
| 48186 | The HCF of two numbers is 62 and the other two factors… | Medium | |
| 48781 | The greatest common factor of 16 and the positive integer n is… | Medium | |
| 48796 | The HCF and LCM of two numbers m and n are respectively… | Medium | |
| 49009 | The H.C.F | Medium | |
| 49237 | If the product of two positive integers is 60, which of the… | Medium | |
| 49860 | What is the sum of the greatest common factor and the lowest… | Medium | |
| 50491 | The H.C.F | Medium | |
| 51460 | The greatest common factor of 16 and the positive integer n is… | Medium | |
| 51493 | Find the L.C.M of 36,90,210 | Medium | |
| 51538 | If x and y are positive integers, which of the following CANNOT… | Medium | |
| 51551 | The H.C.F of two numbers is 17 and their L.C.M is 5134 | Medium | |
| 51572 | Find the L.C.M of 6, 15, 24 and 20 | Medium | |
| 51988 | The L.C.M of two numbers is 495 and their H.C.F is 5 | Medium | |
| 52826 | The H.C.F | Medium | |
| 53430 | The H.C.F | Medium | |
| 53466 | What is the least common multiple of 15, 16, and 24 | Medium | |
| 53811 | If y = 30p, and p is prime, what is the greatest… | Medium | |