Q: Is 1,218,000 a Prime Number?
A: No, 1,218,000 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 1218000 can be evenly divided by 1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 25 28 29 30 35 40 42 48 50 56 58 60 70 75 80 84 87 100 105 112 116 120 125 140 145 150 168 174 175 200 203 210 232 240 250 280 290 300 336 348 350 375 400 406 420 435 464 500 525 560 580 600 609 696 700 725 750 812 840 870 875 1,000 1,015 1,050 1,160 1,200 1,218 1,392 1,400 1,450 1,500 1,624 1,680 1,740 1,750 2,000 2,030 2,100 2,175 2,320 2,436 2,625 2,800 2,900 3,000 3,045 3,248 3,480 3,500 3,625 4,060 4,200 4,350 4,872 5,075 5,250 5,800 6,000 6,090 6,960 7,000 7,250 8,120 8,400 8,700 9,744 10,150 10,500 10,875 11,600 12,180 14,000 14,500 15,225 16,240 17,400 20,300 21,000 21,750 24,360 25,375 29,000 30,450 34,800 40,600 42,000 43,500 48,720 50,750 58,000 60,900 76,125 81,200 87,000 101,500 121,800 152,250 174,000 203,000 243,600 304,500 406,000 609,000 and 1,218,000, with no remainder.
Since 1,218,000 cannot be divided by just 1 and 1,218,000, it is not a prime number.