Q: Is 138,870 a Prime Number?
A: No, 138,870 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 138870 can be evenly divided by 1 2 3 5 6 9 10 15 18 30 45 90 1,543 3,086 4,629 7,715 9,258 13,887 15,430 23,145 27,774 46,290 69,435 and 138,870, with no remainder.
Since 138,870 cannot be divided by just 1 and 138,870, it is not a prime number.