A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 2082360 can be evenly divided by 1 2 3 4 5 6 7 8 10 12 14 15 20 21 24 28 30 35 37 40 42 56 60 67 70 74 84 105 111 120 134 140 148 168 185 201 210 222 259 268 280 296 335 370 402 420 444 469 518 536 555 670 740 777 804 840 888 938 1,005 1,036 1,110 1,295 1,340 1,407 1,480 1,554 1,608 1,876 2,010 2,072 2,220 2,345 2,479 2,590 2,680 2,814 3,108 3,752 3,885 4,020 4,440 4,690 4,958 5,180 5,628 6,216 7,035 7,437 7,770 8,040 9,380 9,916 10,360 11,256 12,395 14,070 14,874 15,540 17,353 18,760 19,832 24,790 28,140 29,748 31,080 34,706 37,185 49,580 52,059 56,280 59,496 69,412 74,370 86,765 99,160 104,118 138,824 148,740 173,530 208,236 260,295 297,480 347,060 416,472 520,590 694,120 1,041,180 and 2,082,360, with no remainder.
Since 2,082,360 cannot be divided by just 1 and 2,082,360, it is not a prime number.