Prime numbers p for which the sum of primes less than or equal to p is prime: Difference between revisions
Prime numbers p for which the sum of primes less than or equal to p is prime (view source)
Revision as of 16:54, 28 July 2021
, 2 years agoAdded Sidef
Catskill549 (talk | contribs) (added AWK) |
(Added Sidef) |
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Found 21 numbers
done...
</pre>
=={{header|Sidef}}==
<lang ruby>func primes_with_prime_sum(n) {
var s = 0
var list = []
n.each_prime {|p|
s += p
list << [p, s] if s.is_prime
}
list
}
for p,s in (primes_with_prime_sum(1000)) {
say "prime: #{'%3s' % p} prime sum: #{'%5s' % s}"
}</lang>
{{out}}
<pre>
prime: 2 prime sum: 2
prime: 3 prime sum: 5
prime: 7 prime sum: 17
prime: 13 prime sum: 41
prime: 37 prime sum: 197
prime: 43 prime sum: 281
prime: 281 prime sum: 7699
prime: 311 prime sum: 8893
prime: 503 prime sum: 22039
prime: 541 prime sum: 24133
prime: 557 prime sum: 25237
prime: 593 prime sum: 28697
prime: 619 prime sum: 32353
prime: 673 prime sum: 37561
prime: 683 prime sum: 38921
prime: 733 prime sum: 43201
prime: 743 prime sum: 44683
prime: 839 prime sum: 55837
prime: 881 prime sum: 61027
prime: 929 prime sum: 66463
prime: 953 prime sum: 70241
</pre>
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