Q: Is 142,428 a Prime Number?
A: No, 142,428 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 142428 can be evenly divided by 1 2 3 4 6 11 12 13 22 26 33 39 44 52 66 78 83 132 143 156 166 249 286 332 429 498 572 858 913 996 1,079 1,716 1,826 2,158 2,739 3,237 3,652 4,316 5,478 6,474 10,956 11,869 12,948 23,738 35,607 47,476 71,214 and 142,428, with no remainder.
Since 142,428 cannot be divided by just 1 and 142,428, it is not a prime number.