Problems on H.C.F and L.C.M Questions

• H.C.F . of 2 3, 3 2 and 15 is?
• H.C.F of 42, 63 and 140 is?
• H.C.F of 1/2, 2/3, 3/4, 4/5 is?
• H.C.F. of 1485 and 4356 is?
• The largest number , which exactly divides 210, 315, 147 and 168 is?
• The H.C.F of two numbers is 12 and their difference is also 12. The number are?
• H.C.F of three numbers is 12. If they be in the ratio 1: 2: 3, the numbers are?
• L. C . M of 2/7, 3/14 and 5/ 3 is?
• Which of the fractions 1/2, 3/7, 3/5, 4/9 is the smallest?
• Which of the following is in descending order?
• The smallest number, which when diminished by 3, is divisible by 21, 28, 36 and 45 is?
• The number of prime factors in 2 222 x 3 333 x 5 555 is?
• The H.C.F and L.C.M of two number are 44 and 264 respectively. If the first number is divided by 2, the quotient is 44. The other number is?
• The LCM of two number is 48. The number are in the ratio of 2:3. Find sum of the numbers.
• Find the greatest possible length which can be used to measure 4 m 3 cm, 4 m 34 cm and 4 m 65 cm exactly.
• Find the least number which when divided by 12, 15, 20 and 24 leaves the same remainder 2 in each case?
• If there number are 2a, 5a, and 7a, what will be their LCM?
• What will be the HCF of ( 2 x 3 x 7 x 9 ), ( 2 x 3 x 9 x 11 ) and ( 2 x 3 x 4 x 5 )?
• Find the LCM of 1/3, 2/9, 5/6 and 4/27.
• Find the LCM of 2/3, 3/5, 4/7 and 9/13.