BrainTwister #57: Prime jumps
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From New Scientist #3527, 25th January 2025 [link] [link] If we start with
21 (which isn’t a prime number), how many times do we have to add 100
before we ...
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2 comments:
I love the top one here - wouldn't call it a doodle but an artpiece :)
Thanks anonymous - it emerged out of a very long telephone conversation. The friend I was talking to says it reminds her of her grandmother.
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