Q: Is 1,428,138 a Prime Number?
A: No, 1,428,138 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 1428138 can be evenly divided by 1 2 3 6 9 18 27 53 54 106 159 318 477 499 954 998 1,431 1,497 2,862 2,994 4,491 8,982 13,473 26,447 26,946 52,894 79,341 158,682 238,023 476,046 714,069 and 1,428,138, with no remainder.
Since 1,428,138 cannot be divided by just 1 and 1,428,138, it is not a prime number.