Q: Is 661,023 a Prime Number?
A: No, 661,023 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 661023 can be evenly divided by 1 3 9 11 33 99 121 363 607 1,089 1,821 5,463 6,677 20,031 60,093 73,447 220,341 and 661,023, with no remainder.
Since 661,023 cannot be divided by just 1 and 661,023, it is not a prime number.