Q: Is 428,640 a Composite Number?

Why is 428,640 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 428,640 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 16 19 20 24 30 32 38 40 47 48 57 60 76 80 94 95 96 114 120 141 152 160 188 190 228 235 240 282 285 304 376 380 456 470 480 564 570 608 705 752 760 893 912 940 1,128 1,140 1,410 1,504 1,520 1,786 1,824 1,880 2,256 2,280 2,679 2,820 3,040 3,572 3,760 4,465 4,512 4,560 5,358 5,640 7,144 7,520 8,930 9,120 10,716 11,280 13,395 14,288 17,860 21,432 22,560 26,790 28,576 35,720 42,864 53,580 71,440 85,728 107,160 142,880 214,320 and 428,640, with no remainder.

Since 428,640 cannot be divided by just 1 and 428,640, 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).