Q: Is 517,420 a Prime Number?
A: No, 517,420 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 517420 can be evenly divided by 1 2 4 5 10 20 41 82 164 205 410 631 820 1,262 2,524 3,155 6,310 12,620 25,871 51,742 103,484 129,355 258,710 and 517,420, with no remainder.
Since 517,420 cannot be divided by just 1 and 517,420, it is not a prime number.