Q: Is 164,640 a Prime Number?
A: No, 164,640 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 164640 can be evenly divided by 1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 32 35 40 42 48 49 56 60 70 80 84 96 98 105 112 120 140 147 160 168 196 210 224 240 245 280 294 336 343 392 420 480 490 560 588 672 686 735 784 840 980 1,029 1,120 1,176 1,372 1,470 1,568 1,680 1,715 1,960 2,058 2,352 2,744 2,940 3,360 3,430 3,920 4,116 4,704 5,145 5,488 5,880 6,860 7,840 8,232 10,290 10,976 11,760 13,720 16,464 20,580 23,520 27,440 32,928 41,160 54,880 82,320 and 164,640, with no remainder.
Since 164,640 cannot be divided by just 1 and 164,640, it is not a prime number.