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Meaning of Ulam spiral | Babel Free

Noun CEFR B2

Definitions

A graphical depiction of the set of prime numbers, constructed by writing the positive integers in a square spiral and specially marking the primes.

CEFR level

B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.
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See also

ulama Ulamambri Ulan Ulan Bator Ulan-Ude Ulanhot

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