The largest power of 2
Please enter a positive number.
A number is a
power of 2
if it is 1, 1*2, 1*2*2, 1*2*2*2, or 1*2*2..*2, or generally, 1 multiplied by any number of 2's
Click the button to see the largest power of 2 that is less than or equal to your number.