Q: Is 26,640 a Prime Number?
A: No, 26,640 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 26640 can be evenly divided by 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 36 37 40 45 48 60 72 74 80 90 111 120 144 148 180 185 222 240 296 333 360 370 444 555 592 666 720 740 888 1,110 1,332 1,480 1,665 1,776 2,220 2,664 2,960 3,330 4,440 5,328 6,660 8,880 13,320 and 26,640, with no remainder.
Since 26,640 cannot be divided by just 1 and 26,640, it is not a prime number.