Q: Is 361,221 a Prime Number?
A: No, 361,221 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 361221 can be evenly divided by 1 3 7 21 103 167 309 501 721 1,169 2,163 3,507 17,201 51,603 120,407 and 361,221, with no remainder.
Since 361,221 cannot be divided by just 1 and 361,221, it is not a prime number.