Q: Is 21,236,148 a Composite Number?

Why is 21,236,148 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 21,236,148 can be evenly divided by 1 2 3 4 6 9 12 18 19 27 36 38 54 57 76 79 108 114 131 158 171 228 237 262 316 342 393 474 513 524 684 711 786 948 1,026 1,179 1,422 1,501 1,572 2,052 2,133 2,358 2,489 2,844 3,002 3,537 4,266 4,503 4,716 4,978 6,004 7,074 7,467 8,532 9,006 9,956 10,349 13,509 14,148 14,934 18,012 20,698 22,401 27,018 29,868 31,047 40,527 41,396 44,802 54,036 62,094 67,203 81,054 89,604 93,141 124,188 134,406 162,108 186,282 196,631 268,812 279,423 372,564 393,262 558,846 589,893 786,524 1,117,692 1,179,786 1,769,679 2,359,572 3,539,358 5,309,037 7,078,716 10,618,074 and 21,236,148, with no remainder.

Since 21,236,148 cannot be divided by just 1 and 21,236,148, 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).