Q: Is 1,540,604 a Prime Number?
A: No, 1,540,604 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 1540604 can be evenly divided by 1 2 4 13 26 43 52 53 86 106 169 172 212 338 559 676 689 1,118 1,378 2,236 2,279 2,756 4,558 7,267 8,957 9,116 14,534 17,914 29,068 29,627 35,828 59,254 118,508 385,151 770,302 and 1,540,604, with no remainder.
Since 1,540,604 cannot be divided by just 1 and 1,540,604, it is not a prime number.