Q: Is 553,940 a Prime Number?
A: No, 553,940 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 553940 can be evenly divided by 1 2 4 5 10 20 27,697 55,394 110,788 138,485 276,970 and 553,940, with no remainder.
Since 553,940 cannot be divided by just 1 and 553,940, it is not a prime number.