Q: Is 1,667,400 a Prime Number?
A: No, 1,667,400 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 1667400 can be evenly divided by 1 2 3 4 5 6 7 8 10 12 14 15 20 21 24 25 28 30 35 40 42 50 56 60 70 75 84 100 105 120 140 150 168 175 200 210 280 300 350 397 420 525 600 700 794 840 1,050 1,191 1,400 1,588 1,985 2,100 2,382 2,779 3,176 3,970 4,200 4,764 5,558 5,955 7,940 8,337 9,528 9,925 11,116 11,910 13,895 15,880 16,674 19,850 22,232 23,820 27,790 29,775 33,348 39,700 41,685 47,640 55,580 59,550 66,696 69,475 79,400 83,370 111,160 119,100 138,950 166,740 208,425 238,200 277,900 333,480 416,850 555,800 833,700 and 1,667,400, with no remainder.
Since 1,667,400 cannot be divided by just 1 and 1,667,400, it is not a prime number.