Q: Is 87,840 a Prime Number?
A: No, 87,840 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 87840 can be evenly divided by 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 61 72 80 90 96 120 122 144 160 180 183 240 244 288 305 360 366 480 488 549 610 720 732 915 976 1,098 1,220 1,440 1,464 1,830 1,952 2,196 2,440 2,745 2,928 3,660 4,392 4,880 5,490 5,856 7,320 8,784 9,760 10,980 14,640 17,568 21,960 29,280 43,920 and 87,840, with no remainder.
Since 87,840 cannot be divided by just 1 and 87,840, it is not a prime number.