The number 6,837,000 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 20 24 25 30 40 43 50 53 60 75 86 100 106 120 125 129 150 159 172 200 212 215 250 258 265 300 318 344 375 424 430 500 516 530 600 636 645 750 795 860 1,000 1,032 1,060 1,075 1,272 1,290 1,325 1,500 1,590 1,720 2,120 2,150 2,279 2,580 2,650 3,000 3,180 3,225 3,975 4,300 4,558 5,160 5,300 5,375 6,360 6,450 6,625 6,837 7,950 8,600 9,116 10,600 10,750 11,395 12,900 13,250 13,674 15,900 16,125 18,232 19,875 21,500 22,790 25,800 26,500 27,348 31,800 32,250 34,185 39,750 43,000 45,580 53,000 54,696 56,975 64,500 68,370 79,500 91,160 113,950 129,000 136,740 159,000 170,925 227,900 273,480 284,875 341,850 455,800 569,750 683,700 854,625 1,139,500 1,367,400 1,709,250 2,279,000 3,418,500 and 6,837,000, with no remainder.
Since 6,837,000 cannot be divided by just 1 and 6,837,000, it is a composite number.