Q: Is 253,890 a Composite Number?

Why is 253,890 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 253,890 can be evenly divided by 1 2 3 5 6 7 9 10 13 14 15 18 21 26 30 31 35 39 42 45 62 63 65 70 78 90 91 93 105 117 126 130 155 182 186 195 210 217 234 273 279 310 315 390 403 434 455 465 546 558 585 630 651 806 819 910 930 1,085 1,170 1,209 1,302 1,365 1,395 1,638 1,953 2,015 2,170 2,418 2,730 2,790 2,821 3,255 3,627 3,906 4,030 4,095 5,642 6,045 6,510 7,254 8,190 8,463 9,765 12,090 14,105 16,926 18,135 19,530 25,389 28,210 36,270 42,315 50,778 84,630 126,945 and 253,890, with no remainder.

Since 253,890 cannot be divided by just 1 and 253,890, 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).