Q: Is 18,387,200 a Composite Number?

Why is 18,387,200 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 18,387,200 can be evenly divided by 1 2 4 5 8 10 13 16 17 20 25 26 32 34 40 50 52 64 65 68 80 85 100 104 128 130 136 160 169 170 200 208 221 256 260 272 320 325 338 340 400 416 425 442 520 544 640 650 676 680 800 832 845 850 884 1,040 1,088 1,105 1,280 1,300 1,352 1,360 1,600 1,664 1,690 1,700 1,768 2,080 2,176 2,210 2,600 2,704 2,720 2,873 3,200 3,328 3,380 3,400 3,536 4,160 4,225 4,352 4,420 5,200 5,408 5,440 5,525 5,746 6,400 6,760 6,800 7,072 8,320 8,450 8,840 10,400 10,816 10,880 11,050 11,492 13,520 13,600 14,144 14,365 16,640 16,900 17,680 20,800 21,632 21,760 22,100 22,984 27,040 27,200 28,288 28,730 33,800 35,360 41,600 43,264 44,200 45,968 54,080 54,400 56,576 57,460 67,600 70,720 71,825 83,200 88,400 91,936 108,160 108,800 114,920 135,200 141,440 143,650 176,800 183,872 216,320 229,840 270,400 282,880 287,300 353,600 367,744 459,680 540,800 574,600 707,200 735,488 919,360 1,081,600 1,149,200 1,414,400 1,838,720 2,298,400 3,677,440 4,596,800 9,193,600 and 18,387,200, with no remainder.

Since 18,387,200 cannot be divided by just 1 and 18,387,200, 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).