Q: Is 551,601 a Prime Number?
A: No, 551,601 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 551601 can be evenly divided by 1 3 9 167 367 501 1,101 1,503 3,303 61,289 183,867 and 551,601, with no remainder.
Since 551,601 cannot be divided by just 1 and 551,601, it is not a prime number.