what is the smallest number which when increased by 3 is divisible by 27 , 35 , 25 , & 21 ?
"here smallest number means lcm hence lcm of 27,35 , 25,21 = 3 ^ 3 x 5 ^ 2 x 7 = 4725 therefore required number is 4725 - 3 = 4722 ans - a"
add(lcm(lcm(27, 35), lcm(25, 21)), 3)