Q: Is 1,285,000 a Prime Number?
A: No, 1,285,000 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 1285000 can be evenly divided by 1 2 4 5 8 10 20 25 40 50 100 125 200 250 257 500 514 625 1,000 1,028 1,250 1,285 2,056 2,500 2,570 5,000 5,140 6,425 10,280 12,850 25,700 32,125 51,400 64,250 128,500 160,625 257,000 321,250 642,500 and 1,285,000, with no remainder.
Since 1,285,000 cannot be divided by just 1 and 1,285,000, it is not a prime number.