Question

The hcf and the lcm of any two numbers are 63 and 1260 respectively if if one of the two numbers is 315 find the other number

Answer 1

let the two numbers be x and y.
so,
lcm(x,y)=1260
hcf(x,y)=63
let x=315
so,1260×63=315×y
y = 252.