Q: Is 1,640,000 a Prime Number?
A: No, 1,640,000 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 1640000 can be evenly divided by 1 2 4 5 8 10 16 20 25 32 40 41 50 64 80 82 100 125 160 164 200 205 250 320 328 400 410 500 625 656 800 820 1,000 1,025 1,250 1,312 1,600 1,640 2,000 2,050 2,500 2,624 3,280 4,000 4,100 5,000 5,125 6,560 8,000 8,200 10,000 10,250 13,120 16,400 20,000 20,500 25,625 32,800 40,000 41,000 51,250 65,600 82,000 102,500 164,000 205,000 328,000 410,000 820,000 and 1,640,000, with no remainder.
Since 1,640,000 cannot be divided by just 1 and 1,640,000, it is not a prime number.