Q: Is 2,121,210 a Composite Number?

Why is 2,121,210 a composite number?

A composite number is a number that can be divided evenly by more numbers than 1 and itself. It is the opposite of a prime number.

The number 2,121,210 can be evenly divided by 1 2 3 5 6 7 9 10 13 14 15 18 21 26 30 35 37 39 42 45 49 63 65 70 74 78 90 91 98 105 111 117 126 130 147 182 185 195 210 222 234 245 259 273 294 315 333 370 390 441 455 481 490 518 546 555 585 630 637 666 735 777 819 882 910 962 1,110 1,170 1,274 1,295 1,365 1,443 1,470 1,554 1,638 1,665 1,813 1,911 2,205 2,331 2,405 2,590 2,730 2,886 3,185 3,330 3,367 3,626 3,822 3,885 4,095 4,329 4,410 4,662 4,810 5,439 5,733 6,370 6,734 7,215 7,770 8,190 8,658 9,065 9,555 10,101 10,878 11,466 11,655 14,430 16,317 16,835 18,130 19,110 20,202 21,645 23,310 23,569 27,195 28,665 30,303 32,634 33,670 43,290 47,138 50,505 54,390 57,330 60,606 70,707 81,585 101,010 117,845 141,414 151,515 163,170 212,121 235,690 303,030 353,535 424,242 707,070 1,060,605 and 2,121,210, with no remainder.

Since 2,121,210 cannot be divided by just 1 and 2,121,210, it is a composite number.

More Examples

• All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).