Q: Is 243,320 a Prime Number?
A: No, 243,320 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 243320 can be evenly divided by 1 2 4 5 7 8 10 11 14 20 22 28 35 40 44 55 56 70 77 79 88 110 140 154 158 220 280 308 316 385 395 440 553 616 632 770 790 869 1,106 1,540 1,580 1,738 2,212 2,765 3,080 3,160 3,476 4,345 4,424 5,530 6,083 6,952 8,690 11,060 12,166 17,380 22,120 24,332 30,415 34,760 48,664 60,830 121,660 and 243,320, with no remainder.
Since 243,320 cannot be divided by just 1 and 243,320, it is not a prime number.