Q: Is 5,121,420 a Prime Number?
A: No, 5,121,420 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 5121420 can be evenly divided by 1 2 3 4 5 6 10 12 15 17 20 30 34 51 60 68 85 102 170 204 255 340 510 1,020 5,021 10,042 15,063 20,084 25,105 30,126 50,210 60,252 75,315 85,357 100,420 150,630 170,714 256,071 301,260 341,428 426,785 512,142 853,570 1,024,284 1,280,355 1,707,140 2,560,710 and 5,121,420, with no remainder.
Since 5,121,420 cannot be divided by just 1 and 5,121,420, it is not a prime number.