Q: Is 1,521,100 a Composite Number?

Why is 1,521,100 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 1,521,100 can be evenly divided by 1 2 4 5 7 10 14 20 25 28 35 41 50 53 70 82 100 106 140 164 175 205 212 265 287 350 371 410 530 574 700 742 820 1,025 1,060 1,148 1,325 1,435 1,484 1,855 2,050 2,173 2,650 2,870 3,710 4,100 4,346 5,300 5,740 7,175 7,420 8,692 9,275 10,865 14,350 15,211 18,550 21,730 28,700 30,422 37,100 43,460 54,325 60,844 76,055 108,650 152,110 217,300 304,220 380,275 760,550 and 1,521,100, with no remainder.

Since 1,521,100 cannot be divided by just 1 and 1,521,100, 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).