The number 1,772,760 can be evenly divided by 1 2 3 4 5 6 8 10 11 12 15 17 20 22 24 30 33 34 40 44 51 55 60 66 68 79 85 88 102 110 120 132 136 158 165 170 187 204 220 237 255 264 316 330 340 374 395 408 440 474 510 561 632 660 680 748 790 869 935 948 1,020 1,122 1,185 1,320 1,343 1,496 1,580 1,738 1,870 1,896 2,040 2,244 2,370 2,607 2,686 2,805 3,160 3,476 3,740 4,029 4,345 4,488 4,740 5,214 5,372 5,610 6,715 6,952 7,480 8,058 8,690 9,480 10,428 10,744 11,220 13,035 13,430 14,773 16,116 17,380 20,145 20,856 22,440 26,070 26,860 29,546 32,232 34,760 40,290 44,319 52,140 53,720 59,092 73,865 80,580 88,638 104,280 118,184 147,730 161,160 177,276 221,595 295,460 354,552 443,190 590,920 886,380 and 1,772,760, with no remainder.
Since 1,772,760 cannot be divided by just 1 and 1,772,760, it is a composite number.