Q: Is 1,564,400 a Prime Number?
A: No, 1,564,400 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 1564400 can be evenly divided by 1 2 4 5 8 10 16 20 25 40 50 80 100 200 400 3,911 7,822 15,644 19,555 31,288 39,110 62,576 78,220 97,775 156,440 195,550 312,880 391,100 782,200 and 1,564,400, with no remainder.
Since 1,564,400 cannot be divided by just 1 and 1,564,400, it is not a prime number.