Q: Is 840,120 a Prime Number?
A: No, 840,120 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 840120 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 7,001 14,002 21,003 28,004 35,005 42,006 56,008 70,010 84,012 105,015 140,020 168,024 210,030 280,040 420,060 and 840,120, with no remainder.
Since 840,120 cannot be divided by just 1 and 840,120, it is not a prime number.