Q: Is 6,723,400 a Prime Number?
A: No, 6,723,400 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 6723400 can be evenly divided by 1 2 4 5 8 10 20 25 40 50 100 200 33,617 67,234 134,468 168,085 268,936 336,170 672,340 840,425 1,344,680 1,680,850 3,361,700 and 6,723,400, with no remainder.
Since 6,723,400 cannot be divided by just 1 and 6,723,400, it is not a prime number.