Q: Is 187,840 a Prime Number?
A: No, 187,840 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 187840 can be evenly divided by 1 2 4 5 8 10 16 20 32 40 64 80 160 320 587 1,174 2,348 2,935 4,696 5,870 9,392 11,740 18,784 23,480 37,568 46,960 93,920 and 187,840, with no remainder.
Since 187,840 cannot be divided by just 1 and 187,840, it is not a prime number.