A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 5362560 can be evenly divided by 1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 19 20 21 24 28 30 32 35 36 38 40 42 45 48 49 56 57 60 63 64 70 72 76 80 84 90 95 96 98 105 112 114 120 126 128 133 140 144 147 152 160 168 171 180 190 192 196 210 224 228 240 245 252 266 280 285 288 294 304 315 320 336 342 360 380 384 392 399 420 441 448 456 480 490 504 532 560 570 576 588 608 630 640 665 672 684 720 735 760 784 798 840 855 882 896 912 931 960 980 1,008 1,064 1,120 1,140 1,152 1,176 1,197 1,216 1,260 1,330 1,344 1,368 1,440 1,470 1,520 1,568 1,596 1,680 1,710 1,764 1,824 1,862 1,920 1,960 1,995 2,016 2,128 2,205 2,240 2,280 2,352 2,394 2,432 2,520 2,660 2,688 2,736 2,793 2,880 2,940 3,040 3,136 3,192 3,360 3,420 3,528 3,648 3,724 3,920 3,990 4,032 4,256 4,410 4,480 4,560 4,655 4,704 4,788 5,040 5,320 5,472 5,586 5,760 5,880 5,985 6,080 6,272 6,384 6,720 6,840 7,056 7,296 7,448 7,840 7,980 8,064 8,379 8,512 8,820 9,120 9,310 9,408 9,576 10,080 10,640 10,944 11,172 11,760 11,970 12,160 12,768 13,440 13,680 13,965 14,112 14,896 15,680 15,960 16,758 17,024 17,640 18,240 18,620 18,816 19,152 20,160 21,280 21,888 22,344 23,520 23,940 25,536 27,360 27,930 28,224 29,792 31,360 31,920 33,516 35,280 36,480 37,240 38,304 40,320 41,895 42,560 44,688 47,040 47,880 51,072 54,720 55,860 56,448 59,584 63,840 67,032 70,560 74,480 76,608 83,790 85,120 89,376 94,080 95,760 109,440 111,720 119,168 127,680 134,064 141,120 148,960 153,216 167,580 178,752 191,520 223,440 255,360 268,128 282,240 297,920 335,160 357,504 383,040 446,880 536,256 595,840 670,320 766,080 893,760 1,072,512 1,340,640 1,787,520 2,681,280 and 5,362,560, with no remainder.
Since 5,362,560 cannot be divided by just 1 and 5,362,560, it is not a prime number.