Q: Is 213,125 a Prime Number?
A: No, 213,125 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 213125 can be evenly divided by 1 5 11 25 31 55 125 155 275 341 625 775 1,375 1,705 3,875 6,875 8,525 19,375 42,625 and 213,125, with no remainder.
Since 213,125 cannot be divided by just 1 and 213,125, it is not a prime number.