Number reference
168 explained.
168: one hundred sixty-eight, composite; factors, prime factorization, roots, binary, hexadecimal, and digit properties.
Identity and representations
- Written form
- one hundred sixty-eight
- Classification
- composite
- Factors
- 1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168
- Prime factorization
- 2 × 2 × 2 × 3 × 7
- Square root
- 12.961481
- Cube root
- 5.517848
- Binary
- 10101000
- Octal
- 250
- Hexadecimal
- A8
- Roman numeral
- CLXVIII
- Digit sum
- 15
- Digital root
- 6
What makes 168 notable
- Factor structure. 168 breaks down into 3 distinct primes (2, 3, 7) and has 16 divisors in total, so it can be split into equal whole-number groups 14 ways beyond 1 and itself.
168 in everyday use
One hundred sixty-eight is the number of hours in a week, the figure most time-budgeting advice is built around.
Nearby numbers
How to read this page
The factor list shows every way 168 splits into equal whole-number groups — 16 divisors in total. The prime factorisation is the compact form of that same information, and the base conversions restate 168 for contexts that do not use decimal.
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