Q: Is 278,920 a Prime Number?
A: No, 278,920 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 278920 can be evenly divided by 1 2 4 5 8 10 19 20 38 40 76 95 152 190 367 380 734 760 1,468 1,835 2,936 3,670 6,973 7,340 13,946 14,680 27,892 34,865 55,784 69,730 139,460 and 278,920, with no remainder.
Since 278,920 cannot be divided by just 1 and 278,920, it is not a prime number.