A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 1452000 can be evenly divided by 1 2 3 4 5 6 8 10 11 12 15 16 20 22 24 25 30 32 33 40 44 48 50 55 60 66 75 80 88 96 100 110 120 121 125 132 150 160 165 176 200 220 240 242 250 264 275 300 330 352 363 375 400 440 480 484 500 528 550 600 605 660 726 750 800 825 880 968 1,000 1,056 1,100 1,200 1,210 1,320 1,375 1,452 1,500 1,650 1,760 1,815 1,936 2,000 2,200 2,400 2,420 2,640 2,750 2,904 3,000 3,025 3,300 3,630 3,872 4,000 4,125 4,400 4,840 5,280 5,500 5,808 6,000 6,050 6,600 7,260 8,250 8,800 9,075 9,680 11,000 11,616 12,000 12,100 13,200 14,520 15,125 16,500 18,150 19,360 22,000 24,200 26,400 29,040 30,250 33,000 36,300 44,000 45,375 48,400 58,080 60,500 66,000 72,600 90,750 96,800 121,000 132,000 145,200 181,500 242,000 290,400 363,000 484,000 726,000 and 1,452,000, with no remainder.
Since 1,452,000 cannot be divided by just 1 and 1,452,000, it is not a prime number.