Q: Is 1,251,020 a Prime Number?
A: No, 1,251,020 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 1251020 can be evenly divided by 1 2 4 5 10 20 71 142 284 355 710 881 1,420 1,762 3,524 4,405 8,810 17,620 62,551 125,102 250,204 312,755 625,510 and 1,251,020, with no remainder.
Since 1,251,020 cannot be divided by just 1 and 1,251,020, it is not a prime number.