Q: Is 401,000 a Prime Number?
A: No, 401,000 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 401000 can be evenly divided by 1 2 4 5 8 10 20 25 40 50 100 125 200 250 401 500 802 1,000 1,604 2,005 3,208 4,010 8,020 10,025 16,040 20,050 40,100 50,125 80,200 100,250 200,500 and 401,000, with no remainder.
Since 401,000 cannot be divided by just 1 and 401,000, it is not a prime number.