Q: Is 2,167,428 a Prime Number?
A: No, 2,167,428 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 2167428 can be evenly divided by 1 2 3 4 6 12 23 46 69 92 138 276 7,853 15,706 23,559 31,412 47,118 94,236 180,619 361,238 541,857 722,476 1,083,714 and 2,167,428, with no remainder.
Since 2,167,428 cannot be divided by just 1 and 2,167,428, it is not a prime number.