A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 9270100 can be evenly divided by 1 2 4 5 7 10 14 17 19 20 25 28 34 35 38 41 50 68 70 76 82 85 95 100 119 133 140 164 170 175 190 205 238 266 287 323 340 350 380 410 425 475 476 532 574 595 646 665 697 700 779 820 850 950 1,025 1,148 1,190 1,292 1,330 1,394 1,435 1,558 1,615 1,700 1,900 2,050 2,261 2,380 2,660 2,788 2,870 2,975 3,116 3,230 3,325 3,485 3,895 4,100 4,522 4,879 5,453 5,740 5,950 6,460 6,650 6,970 7,175 7,790 8,075 9,044 9,758 10,906 11,305 11,900 13,243 13,300 13,940 14,350 15,580 16,150 17,425 19,475 19,516 21,812 22,610 24,395 26,486 27,265 28,700 32,300 34,850 38,950 45,220 48,790 52,972 54,530 56,525 66,215 69,700 77,900 92,701 97,580 109,060 113,050 121,975 132,430 136,325 185,402 226,100 243,950 264,860 272,650 331,075 370,804 463,505 487,900 545,300 662,150 927,010 1,324,300 1,854,020 2,317,525 4,635,050 and 9,270,100, with no remainder.
Since 9,270,100 cannot be divided by just 1 and 9,270,100, it is not a prime number.