Q: Is 635,742 a Prime Number?
A: No, 635,742 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 635742 can be evenly divided by 1 2 3 6 9 18 27 54 61 122 183 193 366 386 549 579 1,098 1,158 1,647 1,737 3,294 3,474 5,211 10,422 11,773 23,546 35,319 70,638 105,957 211,914 317,871 and 635,742, with no remainder.
Since 635,742 cannot be divided by just 1 and 635,742, it is not a prime number.