Q: Is 1,455,421 a Prime Number?
A: No, 1,455,421 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 1455421 can be evenly divided by 1 11 17 43 181 187 473 731 1,991 3,077 7,783 8,041 33,847 85,613 132,311 and 1,455,421, with no remainder.
Since 1,455,421 cannot be divided by just 1 and 1,455,421, it is not a prime number.