Q: Is 21,054,200 a Composite Number?

Why is 21,054,200 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 21,054,200 can be evenly divided by 1 2 4 5 8 10 20 23 25 40 46 50 92 100 115 184 199 200 230 398 460 529 575 796 920 995 1,058 1,150 1,592 1,990 2,116 2,300 2,645 3,980 4,232 4,577 4,600 4,975 5,290 7,960 9,154 9,950 10,580 13,225 18,308 19,900 21,160 22,885 26,450 36,616 39,800 45,770 52,900 91,540 105,271 105,800 114,425 183,080 210,542 228,850 421,084 457,700 526,355 842,168 915,400 1,052,710 2,105,420 2,631,775 4,210,840 5,263,550 10,527,100 and 21,054,200, with no remainder.

Since 21,054,200 cannot be divided by just 1 and 21,054,200, 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).