Q: Is 1,625,000 a Prime Number?
A: No, 1,625,000 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 1625000 can be evenly divided by 1 2 4 5 8 10 13 20 25 26 40 50 52 65 100 104 125 130 200 250 260 325 500 520 625 650 1,000 1,250 1,300 1,625 2,500 2,600 3,125 3,250 5,000 6,250 6,500 8,125 12,500 13,000 15,625 16,250 25,000 31,250 32,500 40,625 62,500 65,000 81,250 125,000 162,500 203,125 325,000 406,250 812,500 and 1,625,000, with no remainder.
Since 1,625,000 cannot be divided by just 1 and 1,625,000, it is not a prime number.