Q: Is 15,428 a Prime Number?
A: No, 15,428 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 15428 can be evenly divided by 1 2 4 7 14 19 28 29 38 58 76 116 133 203 266 406 532 551 812 1,102 2,204 3,857 7,714 and 15,428, with no remainder.
Since 15,428 cannot be divided by just 1 and 15,428, it is not a prime number.