Q: Is 2,421,003 a Prime Number?
A: No, 2,421,003 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 2421003 can be evenly divided by 1 3 13 23 39 69 299 897 2,699 8,097 35,087 62,077 105,261 186,231 807,001 and 2,421,003, with no remainder.
Since 2,421,003 cannot be divided by just 1 and 2,421,003, it is not a prime number.