Q: Is 40,000 a Prime Number?
A: No, 40,000 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 40000 can be evenly divided by 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 125 160 200 250 320 400 500 625 800 1,000 1,250 1,600 2,000 2,500 4,000 5,000 8,000 10,000 20,000 and 40,000, with no remainder.
Since 40,000 cannot be divided by just 1 and 40,000, it is not a prime number.