Q: Is 7,742,021 a Prime Number?
A: No, 7,742,021 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 7742021 can be evenly divided by 1 7 17 43 89 119 289 301 623 731 1,513 2,023 3,827 5,117 10,591 12,427 25,721 26,789 65,059 86,989 180,047 455,413 1,106,003 and 7,742,021, with no remainder.
Since 7,742,021 cannot be divided by just 1 and 7,742,021, it is not a prime number.