Q: Is 178,400 a Prime Number?
A: No, 178,400 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 178400 can be evenly divided by 1 2 4 5 8 10 16 20 25 32 40 50 80 100 160 200 223 400 446 800 892 1,115 1,784 2,230 3,568 4,460 5,575 7,136 8,920 11,150 17,840 22,300 35,680 44,600 89,200 and 178,400, with no remainder.
Since 178,400 cannot be divided by just 1 and 178,400, it is not a prime number.