A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 1102950 can be evenly divided by 1 2 3 5 6 9 10 15 18 19 25 27 30 38 43 45 50 54 57 75 86 90 95 114 129 135 150 171 190 215 225 258 270 285 342 387 430 450 475 513 570 645 675 774 817 855 950 1,026 1,075 1,161 1,290 1,350 1,425 1,634 1,710 1,935 2,150 2,322 2,451 2,565 2,850 3,225 3,870 4,085 4,275 4,902 5,130 5,805 6,450 7,353 8,170 8,550 9,675 11,610 12,255 12,825 14,706 19,350 20,425 22,059 24,510 25,650 29,025 36,765 40,850 44,118 58,050 61,275 73,530 110,295 122,550 183,825 220,590 367,650 551,475 and 1,102,950, with no remainder.
Since 1,102,950 cannot be divided by just 1 and 1,102,950, it is not a prime number.