The number 3,441,204 can be evenly divided by 1 2 3 4 6 9 12 13 18 19 26 27 36 38 39 43 52 54 57 76 78 81 86 108 114 117 129 156 162 171 172 228 234 247 258 324 342 351 387 468 494 513 516 559 684 702 741 774 817 988 1,026 1,053 1,118 1,161 1,404 1,482 1,539 1,548 1,634 1,677 2,052 2,106 2,223 2,236 2,322 2,451 2,964 3,078 3,268 3,354 3,483 4,212 4,446 4,644 4,902 5,031 6,156 6,669 6,708 6,966 7,353 8,892 9,804 10,062 10,621 13,338 13,932 14,706 15,093 20,007 20,124 21,242 22,059 26,676 29,412 30,186 31,863 40,014 42,484 44,118 45,279 60,372 63,726 66,177 80,028 88,236 90,558 95,589 127,452 132,354 181,116 191,178 264,708 286,767 382,356 573,534 860,301 1,147,068 1,720,602 and 3,441,204, with no remainder.
Since 3,441,204 cannot be divided by just 1 and 3,441,204, it is a composite number.