Q: Is 136,420 a Prime Number?
A: No, 136,420 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 136420 can be evenly divided by 1 2 4 5 10 19 20 38 76 95 190 359 380 718 1,436 1,795 3,590 6,821 7,180 13,642 27,284 34,105 68,210 and 136,420, with no remainder.
Since 136,420 cannot be divided by just 1 and 136,420, it is not a prime number.