Q: Is 2,497,640 a Prime Number?
A: No, 2,497,640 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 2497640 can be evenly divided by 1 2 4 5 8 10 17 20 34 40 68 85 136 170 340 680 3,673 7,346 14,692 18,365 29,384 36,730 62,441 73,460 124,882 146,920 249,764 312,205 499,528 624,410 1,248,820 and 2,497,640, with no remainder.
Since 2,497,640 cannot be divided by just 1 and 2,497,640, it is not a prime number.