Q: Is 124,821 a Prime Number?
A: No, 124,821 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 124821 can be evenly divided by 1 3 9 23 27 67 69 81 201 207 603 621 1,541 1,809 1,863 4,623 5,427 13,869 41,607 and 124,821, with no remainder.
Since 124,821 cannot be divided by just 1 and 124,821, it is not a prime number.