Q: Is 61,218 a Prime Number?
A: No, 61,218 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 61218 can be evenly divided by 1 2 3 6 9 18 19 38 57 114 171 179 342 358 537 1,074 1,611 3,222 3,401 6,802 10,203 20,406 30,609 and 61,218, with no remainder.
Since 61,218 cannot be divided by just 1 and 61,218, it is not a prime number.