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Practice HCF and LCM Questions and Answers

The LCM of two numbers is 216 and their HCF is 36. If one of the numbers is 72, the other number is:
The LCM of two numbers is 432 and their HCF is 55. If one of the numbers is 132, the other number is:
The HCF of 450 and 740 is 150, their LCM is:
The HCF of 2165 and 7409 is 239, their LCM is:
The HCF of 6453 and 7122 is 325, their LCM is:
The HCF of 4225 and 6440 is 230, their LCM is:
The HCF of 4625 and 5445 is 225, their LCM is:
The HCF of 5453 and 6409 is 221, their LCM is:
The LCM of two numbers is 4 times of their HCF. The sum of LCM and HCF is 280. If one of the number is 224, then the other number is:
The LCM of two numbers is 3 times of their HCF. The sum of LCM and HCF is 240. If one of the number is 200, then the other number is:
The LCM of two numbers is 4 times of their HCF. The sum of LCM and HCF is 350. If one of the number is 200, then the other number is:
The LCM of two numbers is 5 times of their HCF. The sum of LCM and HCF is 240. If one of the number is 200, then the other number is:
The LCM of two numbers is 5 times of their HCF. The sum of LCM and HCF is 300. If one of the number is 250, then the other number is:
The HCF of two numbers is 8. Which of the following can never be their LCM?
The HCF of two numbers is 14. Which of the following can never be their LCM?
The HCF of two numbers is 7. Which of the following can never be their LCM?
The HCF of two numbers is 13. Which of the following can never be their LCM?
The HCF of two numbers is 4. Which of the following can never be their LCM?
The HCF of two numbers is 18. Which of the following can never be their LCM?
The HCF of two numbers is 9. Which of the following can never be their LCM?
Find the HCF of 798 and 525.
Find the HCF of 834 and 582.
Find the LCM of 20, 30, 40, 50.
The HCF of two numbers is 21. Which of the following can never be their LCM?
The ratio of two numbers is 5:10 and their LCM is 100. The numbers are:
The ratio of two numbers is 6:14 and their LCM is 126. The numbers are:
The ratio of two numbers is 4:8 and their LCM is 96. The numbers are:
The ratio of two numbers is 12:14 and their LCM is 168. The numbers are:
The ratio of two numbers is 10:12 and their LCM is 240. The numbers are:
Let N be the greatest number that will divide 82, 105, 128 leaving the same remainder in each case. Then sum of the digits in N is:
Let N be the greatest number that will divide 86, 120, 154 leaving the same remainder in each case. Then sum of the digits in N is:
Let N be the greatest number that will divide 78, 109, 140 leaving the same remainder in each case. Then sum of the digits in N is:
Let N be the greatest number that will divide 72, 105, 138 leaving the same remainder in each case. Then sum of the digits in N is:
Let N be the greatest number that will divide 90, 112, 134 leaving the same remainder in each case. Then sum of the digits in N is:
Let N be the greatest number that will divide 85, 112, 139 leaving the same remainder in each case. Then sum of the digits in N is:
Let N be the greatest number that will divide 85, 116, 147 leaving the same remainder in each case. Then sum of the digits in N is:
The smallest number which when divided by 25 and 30 leaves remainder 10 and 15 respectively is:
The smallest number which when divided by 27 and 36 leaves remainder 12 and 21 respectively is:
The smallest number which when divided by 28 and 32 leaves remainder 12 and 16 respectively is:
The smallest number which when divided by 29 and 33 leaves remainder 11 and 15 respectively is:

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