A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 9260460 can be evenly divided by 1 2 3 4 5 6 9 10 11 12 15 18 20 22 27 30 33 36 44 45 54 55 60 66 90 99 108 110 132 135 165 180 198 220 270 297 330 396 495 540 594 660 990 1,188 1,485 1,559 1,980 2,970 3,118 4,677 5,940 6,236 7,795 9,354 14,031 15,590 17,149 18,708 23,385 28,062 31,180 34,298 42,093 46,770 51,447 56,124 68,596 70,155 84,186 85,745 93,540 102,894 140,310 154,341 168,372 171,490 205,788 210,465 257,235 280,620 308,682 342,980 420,930 463,023 514,470 617,364 771,705 841,860 926,046 1,028,940 1,543,410 1,852,092 2,315,115 3,086,820 4,630,230 and 9,260,460, with no remainder.
Since 9,260,460 cannot be divided by just 1 and 9,260,460, it is not a prime number.