Q: Is 4,200,009 a Prime Number?
A: No, 4,200,009 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 4200009 can be evenly divided by 1 3 11 33 137 411 929 1,507 2,787 4,521 10,219 30,657 127,273 381,819 1,400,003 and 4,200,009, with no remainder.
Since 4,200,009 cannot be divided by just 1 and 4,200,009, it is not a prime number.