Q: Is 205,000 a Prime Number?
A: No, 205,000 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 205000 can be evenly divided by 1 2 4 5 8 10 20 25 40 41 50 82 100 125 164 200 205 250 328 410 500 625 820 1,000 1,025 1,250 1,640 2,050 2,500 4,100 5,000 5,125 8,200 10,250 20,500 25,625 41,000 51,250 102,500 and 205,000, with no remainder.
Since 205,000 cannot be divided by just 1 and 205,000, it is not a prime number.