A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 923832 can be evenly divided by 1 2 3 4 6 7 8 9 12 13 14 18 21 24 26 27 28 36 39 42 47 52 54 56 63 72 78 84 91 94 104 108 117 126 141 156 168 182 188 189 216 234 252 273 282 312 329 351 364 376 378 423 468 504 546 564 611 658 702 728 756 819 846 936 987 1,092 1,128 1,222 1,269 1,316 1,404 1,512 1,638 1,692 1,833 1,974 2,184 2,444 2,457 2,538 2,632 2,808 2,961 3,276 3,384 3,666 3,948 4,277 4,888 4,914 5,076 5,499 5,922 6,552 7,332 7,896 8,554 8,883 9,828 10,152 10,998 11,844 12,831 14,664 16,497 17,108 17,766 19,656 21,996 23,688 25,662 32,994 34,216 35,532 38,493 43,992 51,324 65,988 71,064 76,986 102,648 115,479 131,976 153,972 230,958 307,944 461,916 and 923,832, with no remainder.
Since 923,832 cannot be divided by just 1 and 923,832, it is not a prime number.