Below is my code but one hidden test case is still failing, can someone help here?

import java.util.*;

public class Solution {

public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int t = sc.nextInt();
    for(int a = 0; a < t; a++){
        long n = sc.nextLong();
        boolean isPrime=checkPrime(n);
        if(!isPrime){
            HighestPrimeFactors(n);}
        else
        {System.out.println(n);}
    }
    sc.close();
}
 public static boolean checkPrime(long num){
int count=0;
for(long i=1;i<=num;i++){
        if(num%i==0){    
         count++; 
        }            
    }
 if(count==2)    
 return true;
 else
 return false;   
}

public static void HighestPrimeFactors(long n){ 
    long max=0;   
    for(long i=1;i<n;i++){
        if(n%i==0){               
         if(checkPrime(i)==true && max<i){
            max=i;
         }
        }
    }
 System.out.println(max);   
}

}

i passed 3 test cases but failed to pass last 2 test case.Can anybody help me out?

handle,"%d",a0 = 0; t; handle,"%ld",prime=array(); for(i<=i++){ if(i==0){ array_push(i); } } prime as parr)); echo "\n"; }

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below code in python passed 1st sample test case but failed hidden test case, could anyone help:

mport sys def factor(n): l=[] for i in range(2,n+1): if n%i==0: l.append(i) for j in l: for k in range(2, j): if (j % k) != 0: continue else: l.remove(j) break #print(j,k) #print(l) l.sort(reverse=True) return(l[0])

t = int(input().strip()) for a0 in range(t): n = int(input().strip()) print(factor(n))

why my code isnt passing more than 1 case import sys t = int(input().strip()) for a0 in range(t): n = int(input().strip())

l = []
for i in range(2, n):
    if n%i==0:
        l.append(i)
if l:
    print(l[-1])
else:
    print(n)