Q: Is 1,321,275 a Prime Number?
A: No, 1,321,275 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 1321275 can be evenly divided by 1 3 5 15 25 75 79 223 237 395 669 1,115 1,185 1,975 3,345 5,575 5,925 16,725 17,617 52,851 88,085 264,255 440,425 and 1,321,275, with no remainder.
Since 1,321,275 cannot be divided by just 1 and 1,321,275, it is not a prime number.