Q: Is 1,145,520 a Composite Number?

Why is 1,145,520 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 1,145,520 can be evenly divided by 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 36 37 40 43 45 48 60 72 74 80 86 90 111 120 129 144 148 172 180 185 215 222 240 258 296 333 344 360 370 387 430 444 516 555 592 645 666 688 720 740 774 860 888 1,032 1,110 1,290 1,332 1,480 1,548 1,591 1,665 1,720 1,776 1,935 2,064 2,220 2,580 2,664 2,960 3,096 3,182 3,330 3,440 3,870 4,440 4,773 5,160 5,328 6,192 6,364 6,660 7,740 7,955 8,880 9,546 10,320 12,728 13,320 14,319 15,480 15,910 19,092 23,865 25,456 26,640 28,638 30,960 31,820 38,184 47,730 57,276 63,640 71,595 76,368 95,460 114,552 127,280 143,190 190,920 229,104 286,380 381,840 572,760 and 1,145,520, with no remainder.

Since 1,145,520 cannot be divided by just 1 and 1,145,520, 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).