A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 3270000 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 80 100 109 120 125 150 200 218 240 250 300 327 375 400 436 500 545 600 625 654 750 872 1,000 1,090 1,200 1,250 1,308 1,500 1,635 1,744 1,875 2,000 2,180 2,500 2,616 2,725 3,000 3,270 3,750 4,360 5,000 5,232 5,450 6,000 6,540 7,500 8,175 8,720 10,000 10,900 13,080 13,625 15,000 16,350 21,800 26,160 27,250 30,000 32,700 40,875 43,600 54,500 65,400 68,125 81,750 109,000 130,800 136,250 163,500 204,375 218,000 272,500 327,000 408,750 545,000 654,000 817,500 1,090,000 1,635,000 and 3,270,000, with no remainder.
Since 3,270,000 cannot be divided by just 1 and 3,270,000, it is not a prime number.