Q: Is 165,920 a Prime Number?
A: No, 165,920 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 165920 can be evenly divided by 1 2 4 5 8 10 16 17 20 32 34 40 61 68 80 85 122 136 160 170 244 272 305 340 488 544 610 680 976 1,037 1,220 1,360 1,952 2,074 2,440 2,720 4,148 4,880 5,185 8,296 9,760 10,370 16,592 20,740 33,184 41,480 82,960 and 165,920, with no remainder.
Since 165,920 cannot be divided by just 1 and 165,920, it is not a prime number.