Q: Is 121,453,440 a Composite Number?

Why is 121,453,440 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 121,453,440 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 16 17 20 24 30 32 34 40 48 51 60 61 64 68 80 85 96 102 120 122 128 136 160 170 183 192 204 240 244 255 272 305 320 340 366 384 408 480 488 510 544 610 640 680 732 816 915 960 976 1,020 1,037 1,088 1,220 1,360 1,464 1,632 1,830 1,920 1,952 2,040 2,074 2,176 2,440 2,720 2,928 3,111 3,264 3,660 3,721 3,904 4,080 4,148 4,880 5,185 5,440 5,856 6,222 6,528 7,320 7,442 7,808 8,160 8,296 9,760 10,370 10,880 11,163 11,712 12,444 14,640 14,884 15,555 16,320 16,592 18,605 19,520 20,740 22,326 23,424 24,888 29,280 29,768 31,110 32,640 33,184 37,210 39,040 41,480 44,652 49,776 55,815 58,560 59,536 62,220 63,257 66,368 74,420 82,960 89,304 99,552 111,630 117,120 119,072 124,440 126,514 132,736 148,840 165,920 178,608 189,771 199,104 223,260 238,144 248,880 253,028 297,680 316,285 331,840 357,216 379,542 398,208 446,520 476,288 497,760 506,056 595,360 632,570 663,680 714,432 759,084 893,040 948,855 995,520 1,012,112 1,190,720 1,265,140 1,428,864 1,518,168 1,786,080 1,897,710 1,991,040 2,024,224 2,381,440 2,530,280 3,036,336 3,572,160 3,795,420 4,048,448 5,060,560 6,072,672 7,144,320 7,590,840 8,096,896 10,121,120 12,145,344 15,181,680 20,242,240 24,290,688 30,363,360 40,484,480 60,726,720 and 121,453,440, with no remainder.

Since 121,453,440 cannot be divided by just 1 and 121,453,440, 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).