Q: Is 423,864 a Prime Number?
A: No, 423,864 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 423864 can be evenly divided by 1 2 3 4 6 7 8 9 12 14 18 21 24 28 29 36 42 56 58 63 72 84 87 116 126 168 174 203 232 252 261 348 406 504 522 609 696 812 841 1,044 1,218 1,624 1,682 1,827 2,088 2,436 2,523 3,364 3,654 4,872 5,046 5,887 6,728 7,308 7,569 10,092 11,774 14,616 15,138 17,661 20,184 23,548 30,276 35,322 47,096 52,983 60,552 70,644 105,966 141,288 211,932 and 423,864, with no remainder.
Since 423,864 cannot be divided by just 1 and 423,864, it is not a prime number.