Q: Is 138,807,840 a Composite Number?

Why is 138,807,840 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 138,807,840 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 71 80 96 120 142 160 213 240 284 355 426 480 568 710 852 1,065 1,136 1,420 1,704 2,130 2,272 2,840 3,408 4,073 4,260 5,680 6,816 8,146 8,520 11,360 12,219 16,292 17,040 20,365 24,438 32,584 34,080 40,730 48,876 61,095 65,168 81,460 97,752 122,190 130,336 162,920 195,504 244,380 289,183 325,840 391,008 488,760 578,366 651,680 867,549 977,520 1,156,732 1,445,915 1,735,098 1,955,040 2,313,464 2,891,830 3,470,196 4,337,745 4,626,928 5,783,660 6,940,392 8,675,490 9,253,856 11,567,320 13,880,784 17,350,980 23,134,640 27,761,568 34,701,960 46,269,280 69,403,920 and 138,807,840, with no remainder.

Since 138,807,840 cannot be divided by just 1 and 138,807,840, 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).