Q: Is 1,321,620 a Prime Number?
A: No, 1,321,620 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 1321620 can be evenly divided by 1 2 3 4 5 6 10 12 15 20 30 60 22,027 44,054 66,081 88,108 110,135 132,162 220,270 264,324 330,405 440,540 660,810 and 1,321,620, with no remainder.
Since 1,321,620 cannot be divided by just 1 and 1,321,620, it is not a prime number.