A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 9700600 can be evenly divided by 1 2 4 5 7 8 10 13 14 20 25 26 28 35 40 41 50 52 56 65 70 82 91 100 104 130 140 164 169 175 182 200 205 260 280 287 325 328 338 350 364 410 455 520 533 574 650 676 700 728 820 845 910 1,025 1,066 1,148 1,183 1,300 1,352 1,400 1,435 1,640 1,690 1,820 2,050 2,132 2,275 2,296 2,366 2,600 2,665 2,870 3,380 3,640 3,731 4,100 4,225 4,264 4,550 4,732 5,330 5,740 5,915 6,760 6,929 7,175 7,462 8,200 8,450 9,100 9,464 10,660 11,480 11,830 13,325 13,858 14,350 14,924 16,900 18,200 18,655 21,320 23,660 26,650 27,716 28,700 29,575 29,848 33,800 34,645 37,310 47,320 48,503 53,300 55,432 57,400 59,150 69,290 74,620 93,275 97,006 106,600 118,300 138,580 149,240 173,225 186,550 194,012 236,600 242,515 277,160 346,450 373,100 388,024 485,030 692,900 746,200 970,060 1,212,575 1,385,800 1,940,120 2,425,150 4,850,300 and 9,700,600, with no remainder.
Since 9,700,600 cannot be divided by just 1 and 9,700,600, it is not a prime number.