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24 lines
300 B

package correct
func isPrime(nb int) bool {
if nb <= 0 || nb == 1 {
return false
}
for i := 2; i <= nb/2; i++ {
if nb%i == 0 {
return false
}
}
return true
}
func FindPrevPrime(nb int) int {
if nb < 2 {
return 0
}
if isPrime(nb) {
return nb
}
return FindPrevPrime(nb - 1)
}