A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 4522000 can be evenly divided by 1 2 4 5 7 8 10 14 16 17 19 20 25 28 34 35 38 40 50 56 68 70 76 80 85 95 100 112 119 125 133 136 140 152 170 175 190 200 238 250 266 272 280 304 323 340 350 380 400 425 475 476 500 532 560 595 646 665 680 700 760 850 875 950 952 1,000 1,064 1,190 1,292 1,330 1,360 1,400 1,520 1,615 1,700 1,750 1,900 1,904 2,000 2,125 2,128 2,261 2,375 2,380 2,584 2,660 2,800 2,975 3,230 3,325 3,400 3,500 3,800 4,250 4,522 4,750 4,760 5,168 5,320 5,950 6,460 6,650 6,800 7,000 7,600 8,075 8,500 9,044 9,500 9,520 10,640 11,305 11,900 12,920 13,300 14,000 14,875 16,150 16,625 17,000 18,088 19,000 22,610 23,800 25,840 26,600 29,750 32,300 33,250 34,000 36,176 38,000 40,375 45,220 47,600 53,200 56,525 59,500 64,600 66,500 80,750 90,440 113,050 119,000 129,200 133,000 161,500 180,880 226,100 238,000 266,000 282,625 323,000 452,200 565,250 646,000 904,400 1,130,500 2,261,000 and 4,522,000, with no remainder.
Since 4,522,000 cannot be divided by just 1 and 4,522,000, it is not a prime number.