Earliest difference between prime gaps
func prime_gap_records(upto) {
var gaps = []
var p = 3
each_prime(p.next_prime, upto, {|q|
gaps[q-p] := p
p = q
})
gaps.grep { defined(_) }
}
var gaps = prime_gap_records(1e8)
for m in (1 .. gaps.max.len) {
gaps.each_cons(2, {|p,q|
if (abs(q-p) > 10**m) {
say "10^#{m} -> (#{p}, #{q}) with gaps (#{
p.next_prime-p}, #{q.next_prime-q}) and difference #{abs(q-p)}"
break
}
})
}Output:
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