
theorem
  7019 is prime
proof
  now
    7019 = 2*3509 + 1; hence not 2 divides 7019 by NAT_4:9;
    7019 = 3*2339 + 2; hence not 3 divides 7019 by NAT_4:9;
    7019 = 5*1403 + 4; hence not 5 divides 7019 by NAT_4:9;
    7019 = 7*1002 + 5; hence not 7 divides 7019 by NAT_4:9;
    7019 = 11*638 + 1; hence not 11 divides 7019 by NAT_4:9;
    7019 = 13*539 + 12; hence not 13 divides 7019 by NAT_4:9;
    7019 = 17*412 + 15; hence not 17 divides 7019 by NAT_4:9;
    7019 = 19*369 + 8; hence not 19 divides 7019 by NAT_4:9;
    7019 = 23*305 + 4; hence not 23 divides 7019 by NAT_4:9;
    7019 = 29*242 + 1; hence not 29 divides 7019 by NAT_4:9;
    7019 = 31*226 + 13; hence not 31 divides 7019 by NAT_4:9;
    7019 = 37*189 + 26; hence not 37 divides 7019 by NAT_4:9;
    7019 = 41*171 + 8; hence not 41 divides 7019 by NAT_4:9;
    7019 = 43*163 + 10; hence not 43 divides 7019 by NAT_4:9;
    7019 = 47*149 + 16; hence not 47 divides 7019 by NAT_4:9;
    7019 = 53*132 + 23; hence not 53 divides 7019 by NAT_4:9;
    7019 = 59*118 + 57; hence not 59 divides 7019 by NAT_4:9;
    7019 = 61*115 + 4; hence not 61 divides 7019 by NAT_4:9;
    7019 = 67*104 + 51; hence not 67 divides 7019 by NAT_4:9;
    7019 = 71*98 + 61; hence not 71 divides 7019 by NAT_4:9;
    7019 = 73*96 + 11; hence not 73 divides 7019 by NAT_4:9;
    7019 = 79*88 + 67; hence not 79 divides 7019 by NAT_4:9;
    7019 = 83*84 + 47; hence not 83 divides 7019 by NAT_4:9;
  end;
  then for n being Element of NAT st 1 < n & n*n <= 7019 & n is prime
  holds not n divides 7019 by XPRIMET1:46;
  hence thesis by NAT_4:14;
end;
