486
The Intel 486 brought the maths coprocessor onto the main chip.
- Even
- Composite
Where 486 fits
Why 486 is special
Floating-point arithmetic had needed a separate optional chip; the 486 integrated it, which made fast decimal maths something software could simply assume. That assumption is why 3D graphics and spreadsheets stopped being specialist workloads.
Factors & digit properties
- Divisors (12)
- 1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 243, 486
- Prime factorisation
- 2 × 3^5
- Digit sum
- 18
- Digital root
- 9
Representations
- Decimal
- 486
- Binary
- 111100110
- Octal
- 746
- Hexadecimal
- 1e6
- Roman numeral
- CDLXXXVI
- Scientific notation
- 4.860 × 10^2
Other mathematical patterns
- Abundant number
- Harshad (Niven) number
Related numbers & connections
The 486 brought the floating-point coprocessor onto the main die, so software could finally assume fast decimal arithmetic was present.
View 386 →Other connections
- developed from386
why?
Strength 0.50, confidence "high".
Technology & computing
Floating-point arithmetic had required a separate coprocessor that most machines did not have, so software could not assume it. The 486 integrated it, and that assumption is what made 3D graphics and heavy spreadsheet work ordinary rather than specialist.
DocumentedTechnology & computingPeriod: 1989
Common questions
Is 486 a prime number?
No, 486 is not prime.
What are the factors of 486?
The factors of 486 are 1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 243, 486.
What is 486 in Roman numerals?
486 in Roman numerals is CDLXXXVI.
About this page's data
Mathematical facts:computed directly from the number's value — nothing to source or verify externally.
Contextual records: 1 reviewer-confirmed record, sourced and reviewed before publication.
Last reviewed: 3 August 2026