Q: Is 67,721,840 a Composite Number?

Why is 67,721,840 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 67,721,840 can be evenly divided by 1 2 4 5 8 10 16 20 37 40 74 80 137 148 167 185 274 296 334 370 548 592 668 685 740 835 1,096 1,336 1,370 1,480 1,670 2,192 2,672 2,740 2,960 3,340 5,069 5,480 6,179 6,680 10,138 10,960 12,358 13,360 20,276 22,879 24,716 25,345 30,895 40,552 45,758 49,432 50,690 61,790 81,104 91,516 98,864 101,380 114,395 123,580 183,032 202,760 228,790 247,160 366,064 405,520 457,580 494,320 846,523 915,160 1,693,046 1,830,320 3,386,092 4,232,615 6,772,184 8,465,230 13,544,368 16,930,460 33,860,920 and 67,721,840, with no remainder.

Since 67,721,840 cannot be divided by just 1 and 67,721,840, 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).