Q: Is 1,515,540 a Composite Number?

Why is 1,515,540 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 1,515,540 can be evenly divided by 1 2 3 4 5 6 10 12 13 15 20 26 29 30 39 52 58 60 65 67 78 87 116 130 134 145 156 174 195 201 260 268 290 335 348 377 390 402 435 580 670 754 780 804 870 871 1,005 1,131 1,340 1,508 1,740 1,742 1,885 1,943 2,010 2,262 2,613 3,484 3,770 3,886 4,020 4,355 4,524 5,226 5,655 5,829 7,540 7,772 8,710 9,715 10,452 11,310 11,658 13,065 17,420 19,430 22,620 23,316 25,259 26,130 29,145 38,860 50,518 52,260 58,290 75,777 101,036 116,580 126,295 151,554 252,590 303,108 378,885 505,180 757,770 and 1,515,540, with no remainder.

Since 1,515,540 cannot be divided by just 1 and 1,515,540, 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).