A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 4470000 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 40 48 50 60 75 80 100 120 125 149 150 200 240 250 298 300 375 400 447 500 596 600 625 745 750 894 1,000 1,192 1,200 1,250 1,490 1,500 1,788 1,875 2,000 2,235 2,384 2,500 2,980 3,000 3,576 3,725 3,750 4,470 5,000 5,960 6,000 7,152 7,450 7,500 8,940 10,000 11,175 11,920 14,900 15,000 17,880 18,625 22,350 29,800 30,000 35,760 37,250 44,700 55,875 59,600 74,500 89,400 93,125 111,750 149,000 178,800 186,250 223,500 279,375 298,000 372,500 447,000 558,750 745,000 894,000 1,117,500 1,490,000 2,235,000 and 4,470,000, with no remainder.
Since 4,470,000 cannot be divided by just 1 and 4,470,000, it is not a prime number.