Q: Is 2,740,820 a Prime Number?
A: No, 2,740,820 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 2740820 can be evenly divided by 1 2 4 5 10 20 43 86 172 215 430 860 3,187 6,374 12,748 15,935 31,870 63,740 137,041 274,082 548,164 685,205 1,370,410 and 2,740,820, with no remainder.
Since 2,740,820 cannot be divided by just 1 and 2,740,820, it is not a prime number.