Q: Is 2,509,640 a Prime Number?
A: No, 2,509,640 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 2509640 can be evenly divided by 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 8,963 17,926 35,852 44,815 62,741 71,704 89,630 125,482 179,260 250,964 313,705 358,520 501,928 627,410 1,254,820 and 2,509,640, with no remainder.
Since 2,509,640 cannot be divided by just 1 and 2,509,640, it is not a prime number.