Q: Is 510,402 a Prime Number?
A: No, 510,402 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 510402 can be evenly divided by 1 2 3 6 257 331 514 662 771 993 1,542 1,986 85,067 170,134 255,201 and 510,402, with no remainder.
Since 510,402 cannot be divided by just 1 and 510,402, it is not a prime number.