Q: Is 279,500 a Prime Number?
A: No, 279,500 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 279500 can be evenly divided by 1 2 4 5 10 13 20 25 26 43 50 52 65 86 100 125 130 172 215 250 260 325 430 500 559 650 860 1,075 1,118 1,300 1,625 2,150 2,236 2,795 3,250 4,300 5,375 5,590 6,500 10,750 11,180 13,975 21,500 27,950 55,900 69,875 139,750 and 279,500, with no remainder.
Since 279,500 cannot be divided by just 1 and 279,500, it is not a prime number.