Road Sign Math

Give me Liberty, or give me a square root! How appropriate that this winning mathematically significant road sign with Liberty is from Pennsylvania. This is another sign from David Slauenwhite.

Two number signs almost always have to use functions that only require one number and this is no exception. It’s easy to try to make [...]

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David Slauenwhite found this sign in his historical archive of interesting road signs.

This is a rather basic addition sign laid out nicely from top to bottom. Adding a little spice to the sign is the fact that the first two numbers are both prime numbers. It is always an exciting time when we find multiple [...]

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“Almost everything comes from nothing.” — Henry F. Amiel
Everything has a beginning, including Road Sign Math. I have travelled on I-94 many times. If you are unfamiliar I-94 is the only interstate that crosses through my home state of North Dakota. Like most roads in North Dakota it is straight as an arrow cutting directly [...]

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The sign below was found by my mother on a recent drive down I-94. She was doing some Road Sign Math hunting and came across this sign and found the combination of numbers very compelling. This had to be a winning sign she thought, but she didn’t see how. Not one to give up quickly [...]

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This stunning sign comes to us from Brian Polidoro. Brian, like many of our other Road Sign Math enthusiasts runs a website dedicated to interesting sitings along the road at www.lostagain.net. Brian’s submission was challenging and required a close inspection from the judging committee.

The rules are particularly relevant on this sign. It is a [...]

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I’m pleased to let all of you Road Sign Math enthusiasts you can now see the Road Sign Math Winners Map. The winners map will be updated to show the location of all mathematically significant roadsigns that have been posted. It’s a wonderful way to see where those great signs are.

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