Q: Is 67,840 a Prime Number?
A: No, 67,840 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 67840 can be evenly divided by 1 2 4 5 8 10 16 20 32 40 53 64 80 106 128 160 212 256 265 320 424 530 640 848 1,060 1,280 1,696 2,120 3,392 4,240 6,784 8,480 13,568 16,960 33,920 and 67,840, with no remainder.
Since 67,840 cannot be divided by just 1 and 67,840, it is not a prime number.