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WITH RECURSIVE numbers AS (
SELECT 2 AS n
UNION ALL
SELECT n + 1 FROM numbers WHERE n < 1000
),
primes AS (
SELECT n
FROM numbers
WHERE n NOT IN (
SELECT n1.n
FROM numbers n1
JOIN numbers n2
ON n2.n < n1.n AND n1.n % n2.n = 0
WHERE n2.n > 1
)
)
SELECT GROUP_CONCAT(n SEPARATOR '&') AS prime_numbers
FROM primes;
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WITH RECURSIVE numbers AS ( SELECT 2 AS n UNION ALL SELECT n + 1 FROM numbers WHERE n < 1000 ), primes AS ( SELECT n FROM numbers WHERE n NOT IN ( SELECT n1.n FROM numbers n1 JOIN numbers n2 ON n2.n < n1.n AND n1.n % n2.n = 0 WHERE n2.n > 1 ) ) SELECT GROUP_CONCAT(n SEPARATOR '&') AS prime_numbers FROM primes;