Question

which numbers have lcm 45

Answer 1

There are many numbers which have l.c.m as 45,

So let's check which numbers have it , By writing Factors,

Factors of 45 are, 1,3,5,9,15,45,

So we can write it is 1*45 or 3*15 or 5*9 ,

So the numbers which have l.c.m as 45 are,

(1,45),
(3,15),
(5,9), Etc,

Hope you understand, Have a great day !

Answer 2

3,15 and 1,45 also so many.