31 lines
442 B
Go
31 lines
442 B
Go
package main
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// Go version of a prime number finder
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import(
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"fmt"
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"os"
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"strconv"
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"math"
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)
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func main() {
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if len(os.Args) < 2 {
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fmt.Println("Usage: go run primes.go [MAX]")
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return
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}
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max,_ := strconv.Atoi(os.Args[1])
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for i:= 3; i < max; i+=2 {
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is_prime := true
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for j := 3; j <= int(math.Ceil(math.Sqrt(float64(i)))); j+=2 {
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if i % j == 0 {
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is_prime = false
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break
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}
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}
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if is_prime {
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fmt.Println(i)
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}
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}
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}
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