Number reference
144 explained.
144: one hundred forty-four, composite, perfect square; factors, prime factorization, roots, binary, hexadecimal, and digit properties.
Identity and representations
- Written form
- one hundred forty-four
- Classification
- composite
- Factors
- 1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144
- Prime factorization
- 2 × 2 × 2 × 2 × 3 × 3
- Square root
- 12
- Cube root
- 5.241483
- Binary
- 10010000
- Octal
- 220
- Hexadecimal
- 90
- Roman numeral
- CXLIV
- Digit sum
- 9
- Digital root
- 9
What makes 144 notable
- Perfect square. 144 = 12², so a square of side 12 has an area of 144.
- Fibonacci number. 144 appears in the Fibonacci sequence, where each term is the sum of the two before it.
144 in everyday use
One hundred forty-four is a gross — twelve dozen — a unit still used in wholesale packaging.
Nearby numbers
How to read this page
The factor list shows every way 144 splits into equal whole-number groups — 15 divisors in total. The prime factorisation is the compact form of that same information, and the base conversions restate 144 for contexts that do not use decimal.
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