Q: Is 145,005 a Prime Number?
A: No, 145,005 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 145005 can be evenly divided by 1 3 5 7 15 21 35 105 1,381 4,143 6,905 9,667 20,715 29,001 48,335 and 145,005, with no remainder.
Since 145,005 cannot be divided by just 1 and 145,005, it is not a prime number.