Q: Is 61,515,160 a Composite Number?

Why is 61,515,160 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 61,515,160 can be evenly divided by 1 2 4 5 7 8 10 14 19 20 28 31 35 38 40 56 62 70 76 95 124 133 140 152 155 190 217 248 266 280 310 373 380 434 532 589 620 665 746 760 868 1,064 1,085 1,178 1,240 1,330 1,492 1,736 1,865 2,170 2,356 2,611 2,660 2,945 2,984 3,730 4,123 4,340 4,712 5,222 5,320 5,890 7,087 7,460 8,246 8,680 10,444 11,563 11,780 13,055 14,174 14,920 16,492 20,615 20,888 23,126 23,560 26,110 28,348 32,984 35,435 41,230 46,252 49,609 52,220 56,696 57,815 70,870 80,941 82,460 92,504 99,218 104,440 115,630 141,740 161,882 164,920 198,436 219,697 231,260 248,045 283,480 323,764 396,872 404,705 439,394 462,520 496,090 647,528 809,410 878,788 992,180 1,098,485 1,537,879 1,618,820 1,757,576 1,984,360 2,196,970 3,075,758 3,237,640 4,393,940 6,151,516 7,689,395 8,787,880 12,303,032 15,378,790 30,757,580 and 61,515,160, with no remainder.

Since 61,515,160 cannot be divided by just 1 and 61,515,160, 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).