Q: Is 155,428 a Prime Number?
A: No, 155,428 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 155428 can be evenly divided by 1 2 4 7 13 14 26 28 49 52 61 91 98 122 182 196 244 364 427 637 793 854 1,274 1,586 1,708 2,548 2,989 3,172 5,551 5,978 11,102 11,956 22,204 38,857 77,714 and 155,428, with no remainder.
Since 155,428 cannot be divided by just 1 and 155,428, it is not a prime number.