Question
Find the greatest 4-digit number which is exactly divisible by both 15 and 21.
More HCF and LCM Questions
- The given numbers are in the ratio 2:5:6, and their highest common factor (HCF) is 15. Determine the least common multiple (LCM) of these numbers.
- The product of two numbers is 198 and their HCF is 11. What is the LCM of these two numbers?
- Three numbers are in the ratio 1:4:5 respectively. If the HCF of the numbers is 7, then find the LCM of the numbers.
- The HCF of two numbers is 14. Which of the following can never be their LCM?
- The HCF of two numbers is 9 and their LCM is 180. If one of the numbers is 45, find the other number.
- LCM of two numbers is 5 times their HCF. The product of the numbers is 4500. What will be the maximum possible difference between the numbers?
- If the average age of "Ava," "Bella," and "Cara" is 30 years, and the ratio of their ages is 5:7:3, what is the age of "Cara"?
- The H.C.F. of two numbers is 14 and the other two factors of their L.C.M. are 5 and 11. The larger of the two numbers is:
- Sum of the two numbers is 42 and their HCF and LCM are 6 and 72, respectively. Find the sum of reciprocal of the given two numbers.
- The HCF of two numbers is 6 and their LCM is 180. If one number is 30, find the other number.
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