Copyright © University of Cambridge. All rights reserved.

'One Million to Seven' printed from

Show menu

Start by putting one million ($1 000 000$) into the display of your calculator.

If you can see this message Flash may not be working in your browser
Please see to enable it.

Can you reduce this to $7$ using just these six buttons - the $7$ key and add, subtract, multiply, divide and equals as many times as you like?
6 buttons

What is the shortest way can you find to do it?