LastRow multiplied by 2

Hello,

I have my lastrow dimension working however I need to double the amount. So whatever lastrow ends up being multiplied by 2. I have tried adding LastRow & "*2" however it doesn't work.

.Range("A3").Copy .Range("A3:A" & LastRow3)

nevermind. I figured it out.

.Range("A3").Copy .Range("A3:A" & LastRow3 * 2)

Is It?

.Range("A3").Copy .Range("A3:A" & LastRow3 * 2)