A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 3013560 can be evenly divided by 1 2 3 4 5 6 8 9 10 11 12 15 18 20 22 24 30 33 36 40 44 45 55 60 66 72 88 90 99 110 120 132 165 180 198 220 264 330 360 396 440 495 660 761 792 990 1,320 1,522 1,980 2,283 3,044 3,805 3,960 4,566 6,088 6,849 7,610 8,371 9,132 11,415 13,698 15,220 16,742 18,264 22,830 25,113 27,396 30,440 33,484 34,245 41,855 45,660 50,226 54,792 66,968 68,490 75,339 83,710 91,320 100,452 125,565 136,980 150,678 167,420 200,904 251,130 273,960 301,356 334,840 376,695 502,260 602,712 753,390 1,004,520 1,506,780 and 3,013,560, with no remainder.
Since 3,013,560 cannot be divided by just 1 and 3,013,560, it is not a prime number.