Q: Is 20,709,240 a Composite Number?

Why is 20,709,240 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 20,709,240 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 19 20 24 30 31 38 40 57 60 62 76 93 95 114 120 124 152 155 186 190 228 248 285 293 310 372 380 456 465 570 586 589 620 744 760 879 930 1,140 1,172 1,178 1,240 1,465 1,758 1,767 1,860 2,280 2,344 2,356 2,930 2,945 3,516 3,534 3,720 4,395 4,712 5,567 5,860 5,890 7,032 7,068 8,790 8,835 9,083 11,134 11,720 11,780 14,136 16,701 17,580 17,670 18,166 22,268 23,560 27,249 27,835 33,402 35,160 35,340 36,332 44,536 45,415 54,498 55,670 66,804 70,680 72,664 83,505 90,830 108,996 111,340 133,608 136,245 167,010 172,577 181,660 217,992 222,680 272,490 334,020 345,154 363,320 517,731 544,980 668,040 690,308 862,885 1,035,462 1,089,960 1,380,616 1,725,770 2,070,924 2,588,655 3,451,540 4,141,848 5,177,310 6,903,080 10,354,620 and 20,709,240, with no remainder.

Since 20,709,240 cannot be divided by just 1 and 20,709,240, 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).