Q: Is 137,780 a Prime Number?
A: No, 137,780 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 137780 can be evenly divided by 1 2 4 5 10 20 83 166 332 415 830 1,660 6,889 13,778 27,556 34,445 68,890 and 137,780, with no remainder.
Since 137,780 cannot be divided by just 1 and 137,780, it is not a prime number.