Q: Is 2,142,045 a Prime Number?
A: No, 2,142,045 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 2142045 can be evenly divided by 1 3 5 9 15 27 41 43 45 81 123 129 135 205 215 243 369 387 405 615 645 1,107 1,161 1,215 1,763 1,845 1,935 3,321 3,483 5,289 5,535 5,805 8,815 9,963 10,449 15,867 16,605 17,415 26,445 47,601 49,815 52,245 79,335 142,803 238,005 428,409 714,015 and 2,142,045, with no remainder.
Since 2,142,045 cannot be divided by just 1 and 2,142,045, it is not a prime number.