Q: Is 321,126 a Prime Number?
A: No, 321,126 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 321126 can be evenly divided by 1 2 3 6 13 23 26 39 46 69 78 138 179 299 358 537 598 897 1,074 1,794 2,327 4,117 4,654 6,981 8,234 12,351 13,962 24,702 53,521 107,042 160,563 and 321,126, with no remainder.
Since 321,126 cannot be divided by just 1 and 321,126, it is not a prime number.