Q: Is 187,400 a Prime Number?
A: No, 187,400 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 187400 can be evenly divided by 1 2 4 5 8 10 20 25 40 50 100 200 937 1,874 3,748 4,685 7,496 9,370 18,740 23,425 37,480 46,850 93,700 and 187,400, with no remainder.
Since 187,400 cannot be divided by just 1 and 187,400, it is not a prime number.