A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 5396000 can be evenly divided by 1 2 4 5 8 10 16 19 20 25 32 38 40 50 71 76 80 95 100 125 142 152 160 190 200 250 284 304 355 380 400 475 500 568 608 710 760 800 950 1,000 1,136 1,349 1,420 1,520 1,775 1,900 2,000 2,272 2,375 2,698 2,840 3,040 3,550 3,800 4,000 4,750 5,396 5,680 6,745 7,100 7,600 8,875 9,500 10,792 11,360 13,490 14,200 15,200 17,750 19,000 21,584 26,980 28,400 33,725 35,500 38,000 43,168 53,960 56,800 67,450 71,000 76,000 107,920 134,900 142,000 168,625 215,840 269,800 284,000 337,250 539,600 674,500 1,079,200 1,349,000 2,698,000 and 5,396,000, with no remainder.
Since 5,396,000 cannot be divided by just 1 and 5,396,000, it is not a prime number.