Q: Is 340,428 a Prime Number?
A: No, 340,428 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 340428 can be evenly divided by 1 2 3 4 6 11 12 22 33 44 66 132 2,579 5,158 7,737 10,316 15,474 28,369 30,948 56,738 85,107 113,476 170,214 and 340,428, with no remainder.
Since 340,428 cannot be divided by just 1 and 340,428, it is not a prime number.