Q: Is 2,560,000 a Prime Number?
A: No, 2,560,000 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 2560000 can be evenly divided by 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 125 128 160 200 250 256 320 400 500 512 625 640 800 1,000 1,024 1,250 1,280 1,600 2,000 2,048 2,500 2,560 3,200 4,000 4,096 5,000 5,120 6,400 8,000 10,000 10,240 12,800 16,000 20,000 20,480 25,600 32,000 40,000 51,200 64,000 80,000 102,400 128,000 160,000 256,000 320,000 512,000 640,000 1,280,000 and 2,560,000, with no remainder.
Since 2,560,000 cannot be divided by just 1 and 2,560,000, it is not a prime number.