Q: Is 254,421 a Prime Number?
A: No, 254,421 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 254421 can be evenly divided by 1 3 9 27 81 243 349 729 1,047 3,141 9,423 28,269 84,807 and 254,421, with no remainder.
Since 254,421 cannot be divided by just 1 and 254,421, it is not a prime number.