A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 4133430 can be evenly divided by 1 2 3 5 6 7 9 10 14 15 18 21 27 30 35 42 45 54 63 70 81 90 105 126 135 162 189 210 243 270 315 378 405 486 567 630 729 810 945 1,134 1,215 1,458 1,701 1,890 2,187 2,430 2,835 3,402 3,645 4,374 5,103 5,670 6,561 7,290 8,505 10,206 10,935 13,122 15,309 17,010 19,683 21,870 25,515 30,618 32,805 39,366 45,927 51,030 59,049 65,610 76,545 91,854 98,415 118,098 137,781 153,090 196,830 229,635 275,562 295,245 413,343 459,270 590,490 688,905 826,686 1,377,810 2,066,715 and 4,133,430, with no remainder.
Since 4,133,430 cannot be divided by just 1 and 4,133,430, it is not a prime number.