Q: Is 1,421,264 a Prime Number?
A: No, 1,421,264 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 1421264 can be evenly divided by 1 2 4 8 13 16 26 52 104 208 6,833 13,666 27,332 54,664 88,829 109,328 177,658 355,316 710,632 and 1,421,264, with no remainder.
Since 1,421,264 cannot be divided by just 1 and 1,421,264, it is not a prime number.