Q: Is 1,238,520 a Prime Number?
A: No, 1,238,520 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 1238520 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 10,321 20,642 30,963 41,284 51,605 61,926 82,568 103,210 123,852 154,815 206,420 247,704 309,630 412,840 619,260 and 1,238,520, with no remainder.
Since 1,238,520 cannot be divided by just 1 and 1,238,520, it is not a prime number.