List of top Mathematics Questions on LCM and HCF

Using prime factorisation, find the HCF of 144, 180 and 192.
The HCF of the numbers 175 and 91 will be:
The $LCM$ of the numbers 12, 15 and 21 will be:
If $LCM(35, 63) = 315$, the $HCF(35, 63)$ will be:
If HCF of the numbers 299, 253 and a third number 'A' is 23 and their LCM is 16445, then what is the number 'A'?
Three friends plan to go for a morning walk. They step off together and their steps measures 48 cm, 52 cm and 56 cm respectively. What is the minimum distance each should walk so that each can cover the same distance in complete steps ten times?
Using prime factorisation, find the HCF of 180, 140 and 210.
L.C.M. of \(x^3 - 9x\) and \(x^2 - 2x - 3\) is
H.C.F. of 2023, 2024, 2025 is:
The HCF of 306 and 657 is
The L.C.M. of \( 12x^2 y^3 z^2 \) and \( 18x^4 y^3 z^3 \) is:
Given that LCM of \( (132, 288) = 3168 \), then HCF of \( (132, 288) \) will be:
The product of two numbers is 4840. If the first number is two fifth of the second number, then what is the first number?
The sum of two numbers is 40 and their HCF is 8. How many pairs of numbers satisfy both the conditions?
Find the sum of the fourth proportional of 60, 24, 15 and the mean proportional of 5 and 20.
The H.C.F. of 7, 8, 9 is
The product of LCM and HCF of any two expression is x-xy+xy-y first expression is (x2+y2) then the second expression will be:
The sum of exponents of the prime factors in the prime factorization of 196 is
The product of two numbers is 30. If their HCF is 5, then LCM is
The HCF and LCM of 48, 72 and 60 are
The traffic lights at three different road crossings change after every 48 sec., 72 sec. and 108 sec., respectively. If they all change simultaneously at hours \(8:20:00\), then at what time will they again change simultaneously ?
The sum of two numbers is 462 and their highest common factor is 22. What is the maximum number of pairs that satisfy these conditions?
The LCM of two numbers is 280 and their ratio is 7: 8. The two numbers are
HCF of 3240, 3600 and a third number is 36 and their LCM is 24 x 35 x 52 x 72. The third number is
If two numbers are in the ratio 6:13 and their least common multiple is 312, then the sum of the numbers is