Q: Is 1,226,421 a Prime Number?
A: No, 1,226,421 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 1226421 can be evenly divided by 1 3 7 9 21 27 49 63 81 103 147 189 243 309 441 567 721 927 1,323 1,701 2,163 2,781 3,969 5,047 6,489 8,343 11,907 15,141 19,467 25,029 45,423 58,401 136,269 175,203 408,807 and 1,226,421, with no remainder.
Since 1,226,421 cannot be divided by just 1 and 1,226,421, it is not a prime number.