Q: Is 651,240 a Composite Number?

Why is 651,240 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 651,240 can be evenly divided by 1 2 3 4 5 6 8 9 10 12 15 18 20 24 27 30 36 40 45 54 60 67 72 81 90 108 120 134 135 162 180 201 216 243 268 270 324 335 360 402 405 486 536 540 603 648 670 804 810 972 1,005 1,080 1,206 1,215 1,340 1,608 1,620 1,809 1,944 2,010 2,412 2,430 2,680 3,015 3,240 3,618 4,020 4,824 4,860 5,427 6,030 7,236 8,040 9,045 9,720 10,854 12,060 14,472 16,281 18,090 21,708 24,120 27,135 32,562 36,180 43,416 54,270 65,124 72,360 81,405 108,540 130,248 162,810 217,080 325,620 and 651,240, with no remainder.

Since 651,240 cannot be divided by just 1 and 651,240, 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).