Q: Is 4,000,023 a Prime Number?
A: No, 4,000,023 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 4000023 can be evenly divided by 1 3 9 27 31 59 81 93 177 243 279 531 729 837 1,593 1,829 2,187 2,511 4,779 5,487 7,533 14,337 16,461 22,599 43,011 49,383 67,797 129,033 148,149 444,447 1,333,341 and 4,000,023, with no remainder.
Since 4,000,023 cannot be divided by just 1 and 4,000,023, it is not a prime number.