Q: Is 669,400 a Prime Number?
A: No, 669,400 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 669400 can be evenly divided by 1 2 4 5 8 10 20 25 40 50 100 200 3,347 6,694 13,388 16,735 26,776 33,470 66,940 83,675 133,880 167,350 334,700 and 669,400, with no remainder.
Since 669,400 cannot be divided by just 1 and 669,400, it is not a prime number.