Q: Is 552,321 a Prime Number?
A: No, 552,321 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 552321 can be evenly divided by 1 3 7 9 11 21 33 63 77 99 231 693 797 2,391 5,579 7,173 8,767 16,737 26,301 50,211 61,369 78,903 184,107 and 552,321, with no remainder.
Since 552,321 cannot be divided by just 1 and 552,321, it is not a prime number.