Q: Is 3,646,820 a Prime Number?
A: No, 3,646,820 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 3646820 can be evenly divided by 1 2 4 5 10 20 182,341 364,682 729,364 911,705 1,823,410 and 3,646,820, with no remainder.
Since 3,646,820 cannot be divided by just 1 and 3,646,820, it is not a prime number.