Q: Is 1,538,240 a Composite Number?

Why is 1,538,240 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 1,538,240 can be evenly divided by 1 2 4 5 8 10 11 16 19 20 22 23 32 38 40 44 46 55 64 76 80 88 92 95 110 115 152 160 176 184 190 209 220 230 253 304 320 352 368 380 418 437 440 460 506 608 704 736 760 836 874 880 920 1,012 1,045 1,216 1,265 1,472 1,520 1,672 1,748 1,760 1,840 2,024 2,090 2,185 2,530 3,040 3,344 3,496 3,520 3,680 4,048 4,180 4,370 4,807 5,060 6,080 6,688 6,992 7,360 8,096 8,360 8,740 9,614 10,120 13,376 13,984 16,192 16,720 17,480 19,228 20,240 24,035 27,968 33,440 34,960 38,456 40,480 48,070 66,880 69,920 76,912 80,960 96,140 139,840 153,824 192,280 307,648 384,560 769,120 and 1,538,240, with no remainder.

Since 1,538,240 cannot be divided by just 1 and 1,538,240, 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).