Q: Is 20,021,440 a Composite Number?

Why is 20,021,440 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 20,021,440 can be evenly divided by 1 2 4 5 8 10 16 19 20 32 37 38 40 64 74 76 80 89 95 148 152 160 178 185 190 296 304 320 356 370 380 445 592 608 703 712 740 760 890 1,184 1,216 1,406 1,424 1,480 1,520 1,691 1,780 2,368 2,812 2,848 2,960 3,040 3,293 3,382 3,515 3,560 5,624 5,696 5,920 6,080 6,586 6,764 7,030 7,120 8,455 11,248 11,840 13,172 13,528 14,060 14,240 16,465 16,910 22,496 26,344 27,056 28,120 28,480 32,930 33,820 44,992 52,688 54,112 56,240 62,567 65,860 67,640 105,376 108,224 112,480 125,134 131,720 135,280 210,752 224,960 250,268 263,440 270,560 312,835 500,536 526,880 541,120 625,670 1,001,072 1,053,760 1,251,340 2,002,144 2,502,680 4,004,288 5,005,360 10,010,720 and 20,021,440, with no remainder.

Since 20,021,440 cannot be divided by just 1 and 20,021,440, 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).