Q: Is 3,157,920 a Composite Number?

Why is 3,157,920 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 3,157,920 can be evenly divided by 1 2 3 4 5 6 8 9 10 12 15 16 17 18 20 24 27 30 32 34 36 40 43 45 48 51 54 60 68 72 80 85 86 90 96 102 108 120 129 135 136 144 153 160 170 172 180 204 215 216 240 255 258 270 272 288 306 340 344 360 387 408 430 432 459 480 510 516 540 544 612 645 680 688 720 731 765 774 816 860 864 918 1,020 1,032 1,080 1,161 1,224 1,290 1,360 1,376 1,440 1,462 1,530 1,548 1,632 1,720 1,836 1,935 2,040 2,064 2,160 2,193 2,295 2,322 2,448 2,580 2,720 2,924 3,060 3,096 3,440 3,655 3,672 3,870 4,080 4,128 4,320 4,386 4,590 4,644 4,896 5,160 5,805 5,848 6,120 6,192 6,579 6,880 7,310 7,344 7,740 8,160 8,772 9,180 9,288 10,320 10,965 11,610 11,696 12,240 12,384 13,158 14,620 14,688 15,480 17,544 18,360 18,576 19,737 20,640 21,930 23,220 23,392 24,480 26,316 29,240 30,960 32,895 35,088 36,720 37,152 39,474 43,860 46,440 52,632 58,480 61,920 65,790 70,176 73,440 78,948 87,720 92,880 98,685 105,264 116,960 131,580 157,896 175,440 185,760 197,370 210,528 263,160 315,792 350,880 394,740 526,320 631,584 789,480 1,052,640 1,578,960 and 3,157,920, with no remainder.

Since 3,157,920 cannot be divided by just 1 and 3,157,920, 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).