Q: Is 3,643,395 a Prime Number?
A: No, 3,643,395 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 3643395 can be evenly divided by 1 3 5 7 15 21 35 49 105 147 245 735 4,957 14,871 24,785 34,699 74,355 104,097 173,495 242,893 520,485 728,679 1,214,465 and 3,643,395, with no remainder.
Since 3,643,395 cannot be divided by just 1 and 3,643,395, it is not a prime number.