4340
4340 is a nickel-chromium-molybdenum alloy steel.
- Even
- Composite
Where 4340 fits
Why 4340 is special
It is used where a part must be strong through a thick section, such as an aircraft landing gear leg, which cheaper steels cannot achieve.
Factors & digit properties
- Divisors (24)
- 1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340
- Prime factorisation
- 2^2 × 5 × 7 × 31
- Digit sum
- 11
- Digital root
- 2
Representations
- Decimal
- 4340
- Scientific notation
- 4.340 × 10^3
Roman numerals
Roman numerals as modelled here goes up to 3,999.
Binary
1 0 0 0 0 1 1 1 1 0 1 0 0
1 × 4,096 + 0 × 2,048 + 0 × 1,024 + 0 × 512 + 0 × 256 + 1 × 128 + 1 × 64 + 1 × 32 + 1 × 16 + 0 × 8 + 1 × 4 + 0 × 2 + 0 × 1 = 4,340
Octal
1 0 3 6 4
1 × 4,096 + 0 × 512 + 3 × 64 + 6 × 8 + 4 × 1 = 4,340
Hexadecimal
1 0 f 4
1 × 4,096 + 0 × 256 + f × 16 + 4 × 1 = 4,340
Read as powers of two: 4,096 + 128 + 64 + 32 + 16 + 4 = 4,340.
In historical numeral systems
Egyptian
4 lotuses, 3 coils of rope, 4 hobbles
4 × 1,000 + 3 × 100 + 4 × 10 = 4,340. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Systems that simply cannot reach this value are left out. Where a script needs a font most readers do not have, the reading is given instead of the glyphs — see number systems for each system in full.
Other mathematical patterns
- Abundant number
Related numbers & connections
Both are chromium-molybdenum alloy steels; nickel gives the first strength through much thicker sections.
View 4140 →Other connections
- is associated with4140
why?
Strength 0.50, confidence "high".
Technology & computing
AISI 4340 offers high hardenability from its nickel, chromium and molybdenum content, allowing strength to be developed through large cross-sections in landing gear and heavy shafts.
DocumentedTechnology & computingGeography: International — AISI and SAE designations
Common questions
Is 4340 a prime number?
No, 4340 is not prime.
What are the factors of 4340?
The factors of 4340 are 1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340.
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: 15 July 2026