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Ulam Spiral Jigsaw Puzzle
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Ulam Spiral Jigsaw Puzzle
If you plot every integer in a spiral and darken the prime numbers, something weird happens. A pattern emerges. There's no known way to predict where prime numbers will occur, but the beautiful spiral patterns they create taunt mathematicians with the possibility that there IS a way. Ulam, the mathematician who discovered this effect, did so while doodling on a napkin during a boring conference talk!
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4.7 out of 5 stars rating1.6K Total Reviews
1,567 Reviews
Reviews for similar products
5 out of 5 stars rating
By Rebecca G.31 December 2020 • Verified Purchase
Puzzle, 20.32 cm x 25.4 cm, 110 pieces
Zazzle Reviewer Program
This puzzle is great, the size is good for children aged older than 7 years old, as the pieces are quite small. Good quality print also. The picture turned out exactly like the photo I submitted. Make sure your photo is crisp and clear. Also consider multiple photos in the one puzzle.
5 out of 5 stars rating
By Amber M.7 July 2019 • Verified Purchase
Puzzle, 40.64 cm x 50.8 cm, 520 pieces
Zazzle Reviewer Program
This puzzle was created for logo/marketing purposes and was easy to design with the great tools Zazzle offer. Fantastic, very happy with the result.
5 out of 5 stars rating
By S.5 September 2021 • Verified Purchase
Puzzle, 20.32 cm x 25.4 cm, 110 pieces
Zazzle Reviewer Program
Turned this into a lockdown activity with my partner for our anniversary. I got the 110 pieces since neither of us are big on puzzles. It's was just one of the nice little fun activities we did together. Probably took 30 minutes all up. We're gona frame it and keep it as a memory. The quality of the print was fine. Our teeth look like they stick out a bit just due to the the shape of the pieces around our teeth. But no problems.
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Product ID: 116461186620507288
Added on 17/3/14, 6:15 am
Rating: G
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