Q: Is 2,645,420 a Prime Number?
A: No, 2,645,420 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 2645420 can be evenly divided by 1 2 4 5 10 20 349 379 698 758 1,396 1,516 1,745 1,895 3,490 3,790 6,980 7,580 132,271 264,542 529,084 661,355 1,322,710 and 2,645,420, with no remainder.
Since 2,645,420 cannot be divided by just 1 and 2,645,420, it is not a prime number.