Q: Is 263,840 a Prime Number?
A: No, 263,840 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 263840 can be evenly divided by 1 2 4 5 8 10 16 17 20 32 34 40 68 80 85 97 136 160 170 194 272 340 388 485 544 680 776 970 1,360 1,552 1,649 1,940 2,720 3,104 3,298 3,880 6,596 7,760 8,245 13,192 15,520 16,490 26,384 32,980 52,768 65,960 131,920 and 263,840, with no remainder.
Since 263,840 cannot be divided by just 1 and 263,840, it is not a prime number.