Q: Is 145,860 a Composite Number?

Why is 145,860 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 145,860 can be evenly divided by 1 2 3 4 5 6 10 11 12 13 15 17 20 22 26 30 33 34 39 44 51 52 55 60 65 66 68 78 85 102 110 130 132 143 156 165 170 187 195 204 220 221 255 260 286 330 340 374 390 429 442 510 561 572 660 663 715 748 780 858 884 935 1,020 1,105 1,122 1,326 1,430 1,716 1,870 2,145 2,210 2,244 2,431 2,652 2,805 2,860 3,315 3,740 4,290 4,420 4,862 5,610 6,630 7,293 8,580 9,724 11,220 12,155 13,260 14,586 24,310 29,172 36,465 48,620 72,930 and 145,860, with no remainder.

Since 145,860 cannot be divided by just 1 and 145,860, 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).