Q: Is 1,728,400 a Prime Number?
A: No, 1,728,400 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 1728400 can be evenly divided by 1 2 4 5 8 10 16 20 25 29 40 50 58 80 100 116 145 149 200 232 290 298 400 464 580 596 725 745 1,160 1,192 1,450 1,490 2,320 2,384 2,900 2,980 3,725 4,321 5,800 5,960 7,450 8,642 11,600 11,920 14,900 17,284 21,605 29,800 34,568 43,210 59,600 69,136 86,420 108,025 172,840 216,050 345,680 432,100 864,200 and 1,728,400, with no remainder.
Since 1,728,400 cannot be divided by just 1 and 1,728,400, it is not a prime number.