Q: Is 162,640 a Prime Number?
A: No, 162,640 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 162640 can be evenly divided by 1 2 4 5 8 10 16 19 20 38 40 76 80 95 107 152 190 214 304 380 428 535 760 856 1,070 1,520 1,712 2,033 2,140 4,066 4,280 8,132 8,560 10,165 16,264 20,330 32,528 40,660 81,320 and 162,640, with no remainder.
Since 162,640 cannot be divided by just 1 and 162,640, it is not a prime number.