Q: Is 5,217,420 a Prime Number?
A: No, 5,217,420 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 5217420 can be evenly divided by 1 2 3 4 5 6 10 12 13 15 20 26 30 39 52 60 65 78 130 156 195 260 390 780 6,689 13,378 20,067 26,756 33,445 40,134 66,890 80,268 86,957 100,335 133,780 173,914 200,670 260,871 347,828 401,340 434,785 521,742 869,570 1,043,484 1,304,355 1,739,140 2,608,710 and 5,217,420, with no remainder.
Since 5,217,420 cannot be divided by just 1 and 5,217,420, it is not a prime number.