Q: Is 427,851 a Prime Number?
A: No, 427,851 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 427851 can be evenly divided by 1 3 9 137 347 411 1,041 1,233 3,123 47,539 142,617 and 427,851, with no remainder.
Since 427,851 cannot be divided by just 1 and 427,851, it is not a prime number.