Basic LCM and HCF MCQs with Answers for mathematics test preparation of all classes and one paper test paper.

## LCM and HCF MCQs

**Find the lowest common multiple of 24, 36 and 40.**

A. 120

B. 240**C. 360**

D. 480

**H.C.F of 4 * 27 * 3125, 8 * 9 * 25 * 7 and 16 * 81 * 5 * 11 * 49 is ______?**

**A. 180**

B. 360

C. 540

D. 1260

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

A. 4, 8, 12

B. 5, 10, 15

C. 10, 20, 30**D. 12, 24, 36**

**The ratio of numbers is 3:4 and their H.C.F is 4. Their L.C.M is _____?**

A. 12

B. 16

C. 24**D. 48**

**Find the smallest number which when increased by 5, divisible by 6, 9, 15, 20 and 24?**

A. 344**B. 355**

C. 366

D. 377

**Find the greatest 4-digit number exactly divisible by 3, 4 and 5?**

A. 9985**B. 9960**

C. 9957

D. 9975

**Find the lowest 4-digit number which when divided by 3, 4 or 5 leaves a remainder of 2 in each case?**

A. 1020

B. 1026

C. 1030**D. 1022**

**Find the greatest number that exactly divides 35, 91 and 840?**

A. 5

B. 6**C. 7**

D. 8

**Find the greatest number which, while dividing 19, 83 and 67, gives a remainder of 3 in each case?**

**A. 16**

B. 17

C. 18

D. 19

**Find the greatest number that, while dividing 47, 215 and 365, gives the same remainder in each case?**

A. 3

B. 4**C. 5**

D. 6

**252 can be expressed as a product of primes as ____?**

**A. 2 * 2 * 3 * 3 * 7**

B. 2 * 2 * 2 * 3 * 7

C. 3 * 3 * 3 * 3 * 7

D. 2 * 3 * 3 * 3 * 7

**Which of the following has most number of divisors?**

A. 99

B. 101**C. 176**

D. 182