Q: Is 1,266,420 a Prime Number?
A: No, 1,266,420 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 1266420 can be evenly divided by 1 2 3 4 5 6 10 12 15 20 30 60 21,107 42,214 63,321 84,428 105,535 126,642 211,070 253,284 316,605 422,140 633,210 and 1,266,420, with no remainder.
Since 1,266,420 cannot be divided by just 1 and 1,266,420, it is not a prime number.