A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 5310600 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 20 24 25 30 40 50 53 60 75 100 106 120 150 159 167 200 212 265 300 318 334 424 501 530 600 636 668 795 835 1,002 1,060 1,272 1,325 1,336 1,590 1,670 2,004 2,120 2,505 2,650 3,180 3,340 3,975 4,008 4,175 5,010 5,300 6,360 6,680 7,950 8,350 8,851 10,020 10,600 12,525 15,900 16,700 17,702 20,040 25,050 26,553 31,800 33,400 35,404 44,255 50,100 53,106 70,808 88,510 100,200 106,212 132,765 177,020 212,424 221,275 265,530 354,040 442,550 531,060 663,825 885,100 1,062,120 1,327,650 1,770,200 2,655,300 and 5,310,600, with no remainder.
Since 5,310,600 cannot be divided by just 1 and 5,310,600, it is not a prime number.