Q: Is 1,621,152 a Composite Number?

Why is 1,621,152 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 1,621,152 can be evenly divided by 1 2 3 4 6 8 9 12 13 16 18 24 26 32 36 39 48 52 72 78 96 104 117 144 156 208 234 288 312 416 433 468 624 866 936 1,248 1,299 1,732 1,872 2,598 3,464 3,744 3,897 5,196 5,629 6,928 7,794 10,392 11,258 13,856 15,588 16,887 20,784 22,516 31,176 33,774 41,568 45,032 50,661 62,352 67,548 90,064 101,322 124,704 135,096 180,128 202,644 270,192 405,288 540,384 810,576 and 1,621,152, with no remainder.

Since 1,621,152 cannot be divided by just 1 and 1,621,152, 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).