Q: Is 1,415,421 a Prime Number?
A: No, 1,415,421 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 1415421 can be evenly divided by 1 3 7 9 21 27 63 189 7,489 22,467 52,423 67,401 157,269 202,203 471,807 and 1,415,421, with no remainder.
Since 1,415,421 cannot be divided by just 1 and 1,415,421, it is not a prime number.