Q: Is 1,400 a Prime Number?
A: No, 1,400 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 1400 can be evenly divided by 1 2 4 5 7 8 10 14 20 25 28 35 40 50 56 70 100 140 175 200 280 350 700 and 1,400, with no remainder.
Since 1,400 cannot be divided by just 1 and 1,400, it is not a prime number.