A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 2524800 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 32 40 48 50 60 64 75 80 96 100 120 128 150 160 192 200 240 263 300 320 384 400 480 526 600 640 789 800 960 1,052 1,200 1,315 1,578 1,600 1,920 2,104 2,400 2,630 3,156 3,200 3,945 4,208 4,800 5,260 6,312 6,575 7,890 8,416 9,600 10,520 12,624 13,150 15,780 16,832 19,725 21,040 25,248 26,300 31,560 33,664 39,450 42,080 50,496 52,600 63,120 78,900 84,160 100,992 105,200 126,240 157,800 168,320 210,400 252,480 315,600 420,800 504,960 631,200 841,600 1,262,400 and 2,524,800, with no remainder.
Since 2,524,800 cannot be divided by just 1 and 2,524,800, it is not a prime number.