GCD dart

main.dart

import 'dart:math';

void main() {
  print(gcd([144, 96, -24, -1200, 671]));
}
int gcd(List<int> els) {
  final minF = els.reduce((a, b) {
    assert(b != 0, "element cannot be zero");
    return min(a, b.abs());
  });
  for(int i = minF; i >= 2; i--) {
    if(els.every((el) => el % i == 0)) {
      return i;
    }
  }
  return 1;
}