Q: Is 402,738 a Prime Number?
A: No, 402,738 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 402738 can be evenly divided by 1 2 3 6 7 14 21 42 43 86 129 223 258 301 446 602 669 903 1,338 1,561 1,806 3,122 4,683 9,366 9,589 19,178 28,767 57,534 67,123 134,246 201,369 and 402,738, with no remainder.
Since 402,738 cannot be divided by just 1 and 402,738, it is not a prime number.