Q: Is 513,961 a Prime Number?
A: No, 513,961 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 513961 can be evenly divided by 1 7 17 49 119 617 833 4,319 10,489 30,233 73,423 and 513,961, with no remainder.
Since 513,961 cannot be divided by just 1 and 513,961, it is not a prime number.