Q: Is 21,729,600 a Composite Number?

Why is 21,729,600 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 21,729,600 can be evenly divided by 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 25 27 30 32 36 40 45 48 50 54 60 64 72 75 80 90 96 100 108 120 135 144 150 160 180 192 200 216 225 240 270 288 300 320 360 400 432 450 480 503 540 576 600 675 720 800 864 900 960 1,006 1,080 1,200 1,350 1,440 1,509 1,600 1,728 1,800 2,012 2,160 2,400 2,515 2,700 2,880 3,018 3,600 4,024 4,320 4,527 4,800 5,030 5,400 6,036 7,200 7,545 8,048 8,640 9,054 10,060 10,800 12,072 12,575 13,581 14,400 15,090 16,096 18,108 20,120 21,600 22,635 24,144 25,150 27,162 30,180 32,192 36,216 37,725 40,240 43,200 45,270 48,288 50,300 54,324 60,360 67,905 72,432 75,450 80,480 90,540 96,576 100,600 108,648 113,175 120,720 135,810 144,864 150,900 160,960 181,080 201,200 217,296 226,350 241,440 271,620 289,728 301,800 339,525 362,160 402,400 434,592 452,700 482,880 543,240 603,600 679,050 724,320 804,800 869,184 905,400 1,086,480 1,207,200 1,358,100 1,448,640 1,810,800 2,172,960 2,414,400 2,716,200 3,621,600 4,345,920 5,432,400 7,243,200 10,864,800 and 21,729,600, with no remainder.

Since 21,729,600 cannot be divided by just 1 and 21,729,600, 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).