Q: Is 136,780 a Prime Number?
A: No, 136,780 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 136780 can be evenly divided by 1 2 4 5 7 10 14 20 28 35 70 140 977 1,954 3,908 4,885 6,839 9,770 13,678 19,540 27,356 34,195 68,390 and 136,780, with no remainder.
Since 136,780 cannot be divided by just 1 and 136,780, it is not a prime number.