Q: Is 1,212,100 a Composite Number?

Why is 1,212,100 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 1,212,100 can be evenly divided by 1 2 4 5 10 17 20 23 25 31 34 46 50 62 68 85 92 100 115 124 155 170 230 310 340 391 425 460 527 575 620 713 775 782 850 1,054 1,150 1,426 1,550 1,564 1,700 1,955 2,108 2,300 2,635 2,852 3,100 3,565 3,910 5,270 7,130 7,820 9,775 10,540 12,121 13,175 14,260 17,825 19,550 24,242 26,350 35,650 39,100 48,484 52,700 60,605 71,300 121,210 242,420 303,025 606,050 and 1,212,100, with no remainder.

Since 1,212,100 cannot be divided by just 1 and 1,212,100, 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).