Q: Is 145,080 a Composite Number?

Why is 145,080 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 145,080 can be evenly divided by 1 2 3 4 5 6 8 9 10 12 13 15 18 20 24 26 30 31 36 39 40 45 52 60 62 65 72 78 90 93 104 117 120 124 130 155 156 180 186 195 234 248 260 279 310 312 360 372 390 403 465 468 520 558 585 620 744 780 806 930 936 1,116 1,170 1,209 1,240 1,395 1,560 1,612 1,860 2,015 2,232 2,340 2,418 2,790 3,224 3,627 3,720 4,030 4,680 4,836 5,580 6,045 7,254 8,060 9,672 11,160 12,090 14,508 16,120 18,135 24,180 29,016 36,270 48,360 72,540 and 145,080, with no remainder.

Since 145,080 cannot be divided by just 1 and 145,080, 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).