Q: Is 3,621,720 a Prime Number?
A: No, 3,621,720 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 3621720 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 30,181 60,362 90,543 120,724 150,905 181,086 241,448 301,810 362,172 452,715 603,620 724,344 905,430 1,207,240 1,810,860 and 3,621,720, with no remainder.
Since 3,621,720 cannot be divided by just 1 and 3,621,720, it is not a prime number.