Question

can two number have 18 as their hcf and 694 as their lcm give reason

Answer 1

any two number can not have 18 as their hcf and 694 as their lcm

because lcm itself contains hcf

i.e. lcm must be divisible by hcf

if we divide 694 by 18 , it can not be completely divide the number
it means 18 and 694 can not be hcf and lcm of any two number s