3 ms·>>> isPower2(231) False Floating point gets you approximate answers.by mgedmin 16y ago>>> isPower2(231) False Floating point gets you approximate answers.mgedmin 16y agoThat was supposed to say >>> isPower2(2**31) False mutter why no preview button on HN mutterscott_s 16y agoIt does, however, have an edit option for a few minutes after you post.