Q: Is 331,440 a Prime Number?
A: No, 331,440 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 331440 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 1,381 2,762 4,143 5,524 6,905 8,286 11,048 13,810 16,572 20,715 22,096 27,620 33,144 41,430 55,240 66,288 82,860 110,480 165,720 and 331,440, with no remainder.
Since 331,440 cannot be divided by just 1 and 331,440, it is not a prime number.