Q: Is 218,358 a Prime Number?
A: No, 218,358 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 218358 can be evenly divided by 1 2 3 6 7 9 14 18 21 42 63 126 1,733 3,466 5,199 10,398 12,131 15,597 24,262 31,194 36,393 72,786 109,179 and 218,358, with no remainder.
Since 218,358 cannot be divided by just 1 and 218,358, it is not a prime number.