Here's something you can do without thinking, assuming you've had the same realisation I've just had:
Write down a multiple of 2¹⁰⁰
This is Mur 
@mur2501 I should have specified: write down a number as a sequence of digits
Here's something you can do without thinking, assuming you've had the same realisation I've just had:
Write down a multiple of 2¹⁰⁰
@mur2501 I should have specified: write down a number as a sequence of digits