Q: Is 387,858 a Prime Number?
A: No, 387,858 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 387858 can be evenly divided by 1 2 3 6 127 254 381 509 762 1,018 1,527 3,054 64,643 129,286 193,929 and 387,858, with no remainder.
Since 387,858 cannot be divided by just 1 and 387,858, it is not a prime number.