Q: Is 1,628,000 a Prime Number?
A: No, 1,628,000 is not a prime number.
A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 1628000 can be evenly divided by 1 2 4 5 8 10 11 16 20 22 25 32 37 40 44 50 55 74 80 88 100 110 125 148 160 176 185 200 220 250 275 296 352 370 400 407 440 500 550 592 740 800 814 880 925 1,000 1,100 1,184 1,375 1,480 1,628 1,760 1,850 2,000 2,035 2,200 2,750 2,960 3,256 3,700 4,000 4,070 4,400 4,625 5,500 5,920 6,512 7,400 8,140 8,800 9,250 10,175 11,000 13,024 14,800 16,280 18,500 20,350 22,000 29,600 32,560 37,000 40,700 44,000 50,875 65,120 74,000 81,400 101,750 148,000 162,800 203,500 325,600 407,000 814,000 and 1,628,000, with no remainder.
Since 1,628,000 cannot be divided by just 1 and 1,628,000, it is not a prime number.