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 18:33, 7 July 2021
, 2 years agoAdded Go
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=={{header|Go}}==
{{trans|Wren}}
<lang go>package main
import (
"fmt"
"rcu"
)
func main() {
primes := rcu.Primes(1000)
maxSum := 0
for _, p := range primes {
maxSum += p
}
c := rcu.PrimeSieve(maxSum, true)
primeSum := 0
var results []int
for _, p := range primes {
primeSum += p
if !c[primeSum] {
results = append(results, p)
}
}
fmt.Println("Primes 'p' under 1000 where the sum of all primes <= p is also prime:")
for i, p := range results {
fmt.Printf("%4d ", p)
if (i+1)%7 == 0 {
fmt.Println()
}
}
fmt.Println("\nFound", len(results), "such primes")
}</lang>
{{out}}
<pre>
Primes 'p' under 1000 where the sum of all primes <= p is also prime:
2 3 7 13 37 43 281
311 503 541 557 593 619 673
683 733 743 839 881 929 953
Found 21 such primes
</pre>
=={{header|Phix}}==
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