HCF & LCM Worksheet

The LCM of two numbers is 2079 and their HCF is 27. If one of the numbers is 189, the other number is

• 297

• 584

• 189

• 216

The product of two co-prime numbers is 117. Then their LCM is

• 117

• 9

• 13

• 39

The LCM of three different numbers is 120. Which of the following cannot be their HCF?

• 8

• 12

• 24

• 35

The LCM of two numbers is 4 times their HCF. The sum of LCM and HCF is 125. If one of the numbers is 100, then the other number is

• 5

• 25

• 100

• 125

The product of two numbers is 216. If the HCF is 6, then their LCM is

• 72

• 60

• 48

• 36

The product of two numbers is 4107. If the HCF of the numbers is 37, then a greater number is

• 185

• 111

• 107

• 101

LCM of two numbers is 225 and their HCF is 5. If one number is 25, then the other number will be

• 5

• 25

• 45

• 225

The LCM of two numbers is 864 and their HCF is 144. If one of the number is 288, then the other number is

• 576

• 1296

• 432

• 144

Find the least number which when divided separately by 15, 20, 36 and 48 leaves 3 as remainder in each case.

• 183

• 243

• 483

• 723

The greatest 4-digit number exactly divisible by 10, 15, 201 is

• 9990

• 9960

• 9980

• 9995