Q: Is 2,642,620 a Prime Number?
A: No, 2,642,620 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 2642620 can be evenly divided by 1 2 4 5 10 20 71 142 284 355 710 1,420 1,861 3,722 7,444 9,305 18,610 37,220 132,131 264,262 528,524 660,655 1,321,310 and 2,642,620, with no remainder.
Since 2,642,620 cannot be divided by just 1 and 2,642,620, it is not a prime number.