Q: Is 862,428 a Prime Number?
A: No, 862,428 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 862428 can be evenly divided by 1 2 3 4 6 7 12 14 21 28 42 84 10,267 20,534 30,801 41,068 61,602 71,869 123,204 143,738 215,607 287,476 431,214 and 862,428, with no remainder.
Since 862,428 cannot be divided by just 1 and 862,428, it is not a prime number.