Q: Is 7,421,742 a Prime Number?
A: No, 7,421,742 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 7421742 can be evenly divided by 1 2 3 6 9 18 19 38 57 114 171 342 21,701 43,402 65,103 130,206 195,309 390,618 412,319 824,638 1,236,957 2,473,914 3,710,871 and 7,421,742, with no remainder.
Since 7,421,742 cannot be divided by just 1 and 7,421,742, it is not a prime number.