Q: Is 318,402 a Prime Number?
A: No, 318,402 is not a prime number.
A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 318402 can be evenly divided by 1 2 3 6 7 9 14 18 19 21 38 42 49 57 63 98 114 126 133 147 171 266 294 342 361 399 441 722 798 882 931 1,083 1,197 1,862 2,166 2,394 2,527 2,793 3,249 5,054 5,586 6,498 7,581 8,379 15,162 16,758 17,689 22,743 35,378 45,486 53,067 106,134 159,201 and 318,402, with no remainder.
Since 318,402 cannot be divided by just 1 and 318,402, it is not a prime number.