Q: Is 1,680,725 a Prime Number?
A: No, 1,680,725 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 1680725 can be evenly divided by 1 5 23 25 37 79 115 185 395 575 851 925 1,817 1,975 2,923 4,255 9,085 14,615 21,275 45,425 67,229 73,075 336,145 and 1,680,725, with no remainder.
Since 1,680,725 cannot be divided by just 1 and 1,680,725, it is not a prime number.