A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 1472040 can be evenly divided by 1 2 3 4 5 6 8 9 10 12 15 18 20 24 27 29 30 36 40 45 47 54 58 60 72 87 90 94 108 116 120 135 141 145 174 180 188 216 232 235 261 270 282 290 348 360 376 423 435 470 522 540 564 580 696 705 783 846 870 940 1,044 1,080 1,128 1,160 1,269 1,305 1,363 1,410 1,566 1,692 1,740 1,880 2,088 2,115 2,538 2,610 2,726 2,820 3,132 3,384 3,480 3,915 4,089 4,230 5,076 5,220 5,452 5,640 6,264 6,345 6,815 7,830 8,178 8,460 10,152 10,440 10,904 12,267 12,690 13,630 15,660 16,356 16,920 20,445 24,534 25,380 27,260 31,320 32,712 36,801 40,890 49,068 50,760 54,520 61,335 73,602 81,780 98,136 122,670 147,204 163,560 184,005 245,340 294,408 368,010 490,680 736,020 and 1,472,040, with no remainder.
Since 1,472,040 cannot be divided by just 1 and 1,472,040, it is not a prime number.