Q: Is 3,121,040 a Prime Number?
A: No, 3,121,040 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 3121040 can be evenly divided by 1 2 4 5 8 10 13 16 20 26 40 52 65 80 104 130 208 260 520 1,040 3,001 6,002 12,004 15,005 24,008 30,010 39,013 48,016 60,020 78,026 120,040 156,052 195,065 240,080 312,104 390,130 624,208 780,260 1,560,520 and 3,121,040, with no remainder.
Since 3,121,040 cannot be divided by just 1 and 3,121,040, it is not a prime number.