Q: Is 38,640 a Prime Number?
A: No, 38,640 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 38640 can be evenly divided by 1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 23 24 28 30 35 40 42 46 48 56 60 69 70 80 84 92 105 112 115 120 138 140 161 168 184 210 230 240 276 280 322 336 345 368 420 460 483 552 560 644 690 805 840 920 966 1,104 1,288 1,380 1,610 1,680 1,840 1,932 2,415 2,576 2,760 3,220 3,864 4,830 5,520 6,440 7,728 9,660 12,880 19,320 and 38,640, with no remainder.
Since 38,640 cannot be divided by just 1 and 38,640, it is not a prime number.