Q: Is 1,427,403 a Prime Number?
A: No, 1,427,403 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 1427403 can be evenly divided by 1 3 23 69 137 151 411 453 3,151 3,473 9,453 10,419 20,687 62,061 475,801 and 1,427,403, with no remainder.
Since 1,427,403 cannot be divided by just 1 and 1,427,403, it is not a prime number.