Q: Is 145,721,820 a Composite Number?

Why is 145,721,820 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 145,721,820 can be evenly divided by 1 2 3 4 5 6 10 12 15 20 30 60 71 79 142 158 213 237 284 316 355 395 426 433 474 710 790 852 866 948 1,065 1,185 1,299 1,420 1,580 1,732 2,130 2,165 2,370 2,598 4,260 4,330 4,740 5,196 5,609 6,495 8,660 11,218 12,990 16,827 22,436 25,980 28,045 30,743 33,654 34,207 56,090 61,486 67,308 68,414 84,135 92,229 102,621 112,180 122,972 136,828 153,715 168,270 171,035 184,458 205,242 307,430 336,540 342,070 368,916 410,484 461,145 513,105 614,860 684,140 922,290 1,026,210 1,844,580 2,052,420 2,428,697 4,857,394 7,286,091 9,714,788 12,143,485 14,572,182 24,286,970 29,144,364 36,430,455 48,573,940 72,860,910 and 145,721,820, with no remainder.

Since 145,721,820 cannot be divided by just 1 and 145,721,820, 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).