A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 5727000 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 20 23 24 25 30 40 46 50 60 69 75 83 92 100 115 120 125 138 150 166 184 200 230 249 250 276 300 332 345 375 415 460 498 500 552 575 600 664 690 750 830 920 996 1,000 1,150 1,245 1,380 1,500 1,660 1,725 1,909 1,992 2,075 2,300 2,490 2,760 2,875 3,000 3,320 3,450 3,818 4,150 4,600 4,980 5,727 5,750 6,225 6,900 7,636 8,300 8,625 9,545 9,960 10,375 11,454 11,500 12,450 13,800 15,272 16,600 17,250 19,090 20,750 22,908 23,000 24,900 28,635 31,125 34,500 38,180 41,500 45,816 47,725 49,800 57,270 62,250 69,000 76,360 83,000 95,450 114,540 124,500 143,175 190,900 229,080 238,625 249,000 286,350 381,800 477,250 572,700 715,875 954,500 1,145,400 1,431,750 1,909,000 2,863,500 and 5,727,000, with no remainder.
Since 5,727,000 cannot be divided by just 1 and 5,727,000, it is not a prime number.