The numbers 31 and 41 are prime numbers. The repeating string for 31 is half as long as one less than 31. The repeating string for 41 is an eighth as long as one less than 41.
Used to do hard core extreme stuff, like teaching math to young people- and easier stuff like pushing one's wheelchair up long and steep mountain roads. Now I sit on the porch outside the house and listen to public radio while I stare at pine trees and lights and shadows.
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