Q: Is 18,351,240 a Composite Number?

Why is 18,351,240 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 18,351,240 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 20 23 24 30 40 46 60 61 69 92 109 115 120 122 138 183 184 218 230 244 276 305 327 345 366 436 460 488 545 552 610 654 690 732 872 915 920 1,090 1,220 1,308 1,380 1,403 1,464 1,635 1,830 2,180 2,440 2,507 2,616 2,760 2,806 3,270 3,660 4,209 4,360 5,014 5,612 6,540 6,649 7,015 7,320 7,521 8,418 10,028 11,224 12,535 13,080 13,298 14,030 15,042 16,836 19,947 20,056 21,045 25,070 26,596 28,060 30,084 33,245 33,672 37,605 39,894 42,090 50,140 53,192 56,120 60,168 66,490 75,210 79,788 84,180 99,735 100,280 132,980 150,420 152,927 159,576 168,360 199,470 265,960 300,840 305,854 398,940 458,781 611,708 764,635 797,880 917,562 1,223,416 1,529,270 1,835,124 2,293,905 3,058,540 3,670,248 4,587,810 6,117,080 9,175,620 and 18,351,240, with no remainder.

Since 18,351,240 cannot be divided by just 1 and 18,351,240, 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).