Question
Four numbers have been given, out of which three are
alike in a certain way and one is different. Select the one that is different.Solution
All are prime numbers except for 221 (which is divisible by 13 and 17).
If total number of factors of 6,615 is 'x', then find the value of (x - 2)(x + 4).
LCM of two prime numbers 'x' and 'y' is 437 where x < y. Find the value of 'y'.
- The product of two numbers is 1344 and their L.C.M is 168. What is the H.C.F of the two numbers?
Find the least number of equal sizes square tiles which can be fitted in a rectangular room whose sides are 360 m and 480 m?
Find the difference between sum of digits of LCM and HCF of 32, 48 and 80.
Find the least common multiple of (16/20), (8/10), and (4/5).
The HCF of a^6 - 1 and a^4+ 2a^3- 2a-1 is
The ratio of two number is 6 : 5 and their HCF is 15. So find and their LCM?
If 'x' is the highest common factor (HCF) of 288 and 272, what is the product of the digits of 'x'?
Let N be the greatest number that will divide 86, 112, 138 leaving the same remainder in each case. Then sum of the digits in N is:
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