A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 2452200 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 20 24 25 30 40 50 60 61 67 75 100 120 122 134 150 183 200 201 244 268 300 305 335 366 402 488 536 600 610 670 732 804 915 1,005 1,220 1,340 1,464 1,525 1,608 1,675 1,830 2,010 2,440 2,680 3,050 3,350 3,660 4,020 4,087 4,575 5,025 6,100 6,700 7,320 8,040 8,174 9,150 10,050 12,200 12,261 13,400 16,348 18,300 20,100 20,435 24,522 32,696 36,600 40,200 40,870 49,044 61,305 81,740 98,088 102,175 122,610 163,480 204,350 245,220 306,525 408,700 490,440 613,050 817,400 1,226,100 and 2,452,200, with no remainder.
Since 2,452,200 cannot be divided by just 1 and 2,452,200, it is not a prime number.