Q: Is 278,516,880 a Composite Number?

Why is 278,516,880 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 278,516,880 can be evenly divided by 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 36 40 45 48 54 60 72 80 81 90 108 120 135 144 162 180 216 240 243 270 324 360 405 432 486 540 648 720 810 972 1,080 1,215 1,296 1,620 1,944 2,160 2,430 3,240 3,888 4,860 6,480 9,720 14,327 19,440 28,654 42,981 57,308 71,635 85,962 114,616 128,943 143,270 171,924 214,905 229,232 257,886 286,540 343,848 386,829 429,810 515,772 573,080 644,715 687,696 773,658 859,620 1,031,544 1,146,160 1,160,487 1,289,430 1,547,316 1,719,240 1,934,145 2,063,088 2,320,974 2,578,860 3,094,632 3,438,480 3,481,461 3,868,290 4,641,948 5,157,720 5,802,435 6,189,264 6,962,922 7,736,580 9,283,896 10,315,440 11,604,870 13,925,844 15,473,160 17,407,305 18,567,792 23,209,740 27,851,688 30,946,320 34,814,610 46,419,480 55,703,376 69,629,220 92,838,960 139,258,440 and 278,516,880, with no remainder.

Since 278,516,880 cannot be divided by just 1 and 278,516,880, 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).