A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 4848400 can be evenly divided by 1 2 4 5 8 10 16 17 20 23 25 31 34 40 46 50 62 68 80 85 92 100 115 124 136 155 170 184 200 230 248 272 310 340 368 391 400 425 460 496 527 575 620 680 713 775 782 850 920 1,054 1,150 1,240 1,360 1,426 1,550 1,564 1,700 1,840 1,955 2,108 2,300 2,480 2,635 2,852 3,100 3,128 3,400 3,565 3,910 4,216 4,600 5,270 5,704 6,200 6,256 6,800 7,130 7,820 8,432 9,200 9,775 10,540 11,408 12,121 12,400 13,175 14,260 15,640 17,825 19,550 21,080 24,242 26,350 28,520 31,280 35,650 39,100 42,160 48,484 52,700 57,040 60,605 71,300 78,200 96,968 105,400 121,210 142,600 156,400 193,936 210,800 242,420 285,200 303,025 484,840 606,050 969,680 1,212,100 2,424,200 and 4,848,400, with no remainder.
Since 4,848,400 cannot be divided by just 1 and 4,848,400, it is not a prime number.