Q: Is 326,640 a Prime Number?
A: No, 326,640 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 326640 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 1,361 2,722 4,083 5,444 6,805 8,166 10,888 13,610 16,332 20,415 21,776 27,220 32,664 40,830 54,440 65,328 81,660 108,880 163,320 and 326,640, with no remainder.
Since 326,640 cannot be divided by just 1 and 326,640, it is not a prime number.