A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 1472064 can be evenly divided by 1 2 3 4 6 8 11 12 16 17 22 24 32 33 34 41 44 48 51 64 66 68 82 88 96 102 123 132 136 164 176 187 192 204 246 264 272 328 352 374 408 451 492 528 544 561 656 697 704 748 816 902 984 1,056 1,088 1,122 1,312 1,353 1,394 1,496 1,632 1,804 1,968 2,091 2,112 2,244 2,624 2,706 2,788 2,992 3,264 3,608 3,936 4,182 4,488 5,412 5,576 5,984 7,216 7,667 7,872 8,364 8,976 10,824 11,152 11,968 14,432 15,334 16,728 17,952 21,648 22,304 23,001 28,864 30,668 33,456 35,904 43,296 44,608 46,002 61,336 66,912 86,592 92,004 122,672 133,824 184,008 245,344 368,016 490,688 736,032 and 1,472,064, with no remainder.
Since 1,472,064 cannot be divided by just 1 and 1,472,064, it is not a prime number.