Q: Is 355,400 a Prime Number?
A: No, 355,400 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 355400 can be evenly divided by 1 2 4 5 8 10 20 25 40 50 100 200 1,777 3,554 7,108 8,885 14,216 17,770 35,540 44,425 71,080 88,850 177,700 and 355,400, with no remainder.
Since 355,400 cannot be divided by just 1 and 355,400, it is not a prime number.