Product of the two numbers(i) `26` and `91`(ii) `510` and `92` (iii) `336` and `54`

Find the LCM and HCF of the following pairs of integers and verify that LCM xx HCF = Product of the integers: (a) 26 and 91 (ii) 510 and 92 (iii) 336 and 54

How many numbers lie between squares of the following numbers? (i) 12 and 13 (ii) 25 and 26 (iii) 99 and 100

The product of two numbers is 20736 and their HCF is 54. Find their LCM.

Define HCF of two positive integers and find the HCF of the following pairs of numbers: (i) 32 and 54 (ii) 18 and 24

Find which of the following numbers are primes : (i) 87 , (ii) 89, (iii) 63, (iv) 91

If the product of two numbers is 336 and their H.C.F. is 4, find their L.C.M.

Which of these numbers can be expressed as a product of two or more prime numbers ? (i) 15 (ii) 34568 (iii) (15xx13)

Round off each of the following numbers to the nearest tens: 87 (ii 92 (iii) 854 (iv) 986

Four geometric means are inserted between 3^(13)-1 and 3^(13)+1. The product of these geometric means is ( i )3^(26)-1 (ii) 3^(52)-2*3^(26)+1( iii) 3^(52)+2*3^(26)-1( iv )3^(52)-3^(26)+1