Q: Is 2,509,220 a Prime Number?
A: No, 2,509,220 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 2509220 can be evenly divided by 1 2 4 5 7 10 14 20 28 35 70 140 17,923 35,846 71,692 89,615 125,461 179,230 250,922 358,460 501,844 627,305 1,254,610 and 2,509,220, with no remainder.
Since 2,509,220 cannot be divided by just 1 and 2,509,220, it is not a prime number.