Q: Is 21,836,400 a Composite Number?

Why is 21,836,400 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 21,836,400 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 31 40 48 50 60 62 75 80 93 100 120 124 150 155 186 200 240 248 300 310 372 400 465 496 587 600 620 744 775 930 1,174 1,200 1,240 1,488 1,550 1,761 1,860 2,325 2,348 2,480 2,935 3,100 3,522 3,720 4,650 4,696 5,870 6,200 7,044 7,440 8,805 9,300 9,392 11,740 12,400 14,088 14,675 17,610 18,197 18,600 23,480 28,176 29,350 35,220 36,394 37,200 44,025 46,960 54,591 58,700 70,440 72,788 88,050 90,985 109,182 117,400 140,880 145,576 176,100 181,970 218,364 234,800 272,955 291,152 352,200 363,940 436,728 454,925 545,910 704,400 727,880 873,456 909,850 1,091,820 1,364,775 1,455,760 1,819,700 2,183,640 2,729,550 3,639,400 4,367,280 5,459,100 7,278,800 10,918,200 and 21,836,400, with no remainder.

Since 21,836,400 cannot be divided by just 1 and 21,836,400, 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).