A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 5441800 can be evenly divided by 1 2 4 5 7 8 10 13 14 20 23 25 26 28 35 40 46 50 52 56 65 70 91 92 100 104 115 130 140 161 169 175 182 184 200 230 260 280 299 322 325 338 350 364 455 460 520 575 598 644 650 676 700 728 805 845 910 920 1,150 1,183 1,196 1,288 1,300 1,352 1,400 1,495 1,610 1,690 1,820 2,093 2,275 2,300 2,366 2,392 2,600 2,990 3,220 3,380 3,640 3,887 4,025 4,186 4,225 4,550 4,600 4,732 5,915 5,980 6,440 6,760 7,475 7,774 8,050 8,372 8,450 9,100 9,464 10,465 11,830 11,960 14,950 15,548 16,100 16,744 16,900 18,200 19,435 20,930 23,660 27,209 29,575 29,900 31,096 32,200 33,800 38,870 41,860 47,320 52,325 54,418 59,150 59,800 77,740 83,720 97,175 104,650 108,836 118,300 136,045 155,480 194,350 209,300 217,672 236,600 272,090 388,700 418,600 544,180 680,225 777,400 1,088,360 1,360,450 2,720,900 and 5,441,800, with no remainder.
Since 5,441,800 cannot be divided by just 1 and 5,441,800, it is not a prime number.