Multiply by 36
72 reverse the digits divide by 3 = 24
9
The reverse, in the sense of undoing the effects of "divide by 21" is "multiply by 21".
Divide by 4.
divide by 21
The greatest integer that will divide evenly into 36 is 36. 18 is 36's greatest proper factor.
The prime number 3 can divide 27 and 36.
Divide by 622.
If 9n = 36 then we divide both sides by 9 to discover what value n has If we divide 9n by 9 we get n If we divide 36 by 9 we get 4 so, if 9n = 36 the n = 4
36
9
Divide by 9