Q: Is 21,084,450 a Composite Number?

Why is 21,084,450 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 21,084,450 can be evenly divided by 1 2 3 5 6 10 15 25 29 30 37 50 58 74 75 87 111 131 145 150 174 185 222 262 290 370 393 435 555 655 725 786 870 925 1,073 1,110 1,310 1,450 1,850 1,965 2,146 2,175 2,775 3,219 3,275 3,799 3,930 4,350 4,847 5,365 5,550 6,438 6,550 7,598 9,694 9,825 10,730 11,397 14,541 16,095 18,995 19,650 22,794 24,235 26,825 29,082 32,190 37,990 48,470 53,650 56,985 72,705 80,475 94,975 113,970 121,175 140,563 145,410 160,950 189,950 242,350 281,126 284,925 363,525 421,689 569,850 702,815 727,050 843,378 1,405,630 2,108,445 3,514,075 4,216,890 7,028,150 10,542,225 and 21,084,450, with no remainder.

Since 21,084,450 cannot be divided by just 1 and 21,084,450, 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).