Q: Is 401,840 a Prime Number?
A: No, 401,840 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 401840 can be evenly divided by 1 2 4 5 8 10 16 20 40 80 5,023 10,046 20,092 25,115 40,184 50,230 80,368 100,460 200,920 and 401,840, with no remainder.
Since 401,840 cannot be divided by just 1 and 401,840, it is not a prime number.