Numberwise

6979

RFC 6979 defines deterministic ECDSA.

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Where 6979 fits

Where 6979 fits: Mathematics, Related numbersMathematics: Semiprime. Related numbers: 8032.MathematicsSemiprimeRelated numbers80326979
6979 connects to 2 worlds: mathematics, related numbers.

Why 6979 is special

It exists because a reused random value in an ECDSA signature reveals the private key outright, which is how several real key compromises happened.

Factors & digit properties

Divisors (4)
1, 7, 997, 6979
Prime factorisation
7 × 997
Digit sum
31
Digital root
4

Representations

Decimal
6979
Scientific notation
6.979 × 10^3

Roman numerals

Roman numerals as modelled here goes up to 3,999.

Binary

1 1 0 1 1 0 1 0 0 0 0 1 1

1 × 4,096 + 1 × 2,048 + 0 × 1,024 + 1 × 512 + 1 × 256 + 0 × 128 + 1 × 64 + 0 × 32 + 0 × 16 + 0 × 8 + 0 × 4 + 1 × 2 + 1 × 1 = 6,979

Octal

1 5 5 0 3

1 × 4,096 + 5 × 512 + 5 × 64 + 0 × 8 + 3 × 1 = 6,979

Hexadecimal

1 b 4 3

1 × 4,096 + b × 256 + 4 × 16 + 3 × 1 = 6,979

Read as powers of two: 4,096 + 2,048 + 512 + 256 + 64 + 2 + 1 = 6,979.

In historical numeral systems

Egyptian

6 lotuses, 9 coils of rope, 7 hobbles, 9 strokes

6 × 1,000 + 9 × 100 + 7 × 10 + 9 × 1 = 6,979. 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

Related numbers & connections

Connection
Both remove the random nonce whose reuse leaks an ECDSA private key; one by a new signature scheme and one by deriving the nonce deterministically.

Both remove the random nonce whose reuse leaks an ECDSA private key; one by a new signature scheme and one by deriving the nonce deterministically.

View 8032 →

Other connections

  • contrasts with8032
    why?

    Strength 0.50, confidence "high".

How is 6979 connected to another number? →

Technology & computing

  • RFC 6979 specifies deriving the ECDSA nonce deterministically from the message and private key. Repeated or predictable nonces allow direct private key recovery, a failure observed in deployed systems.

    DocumentedTechnology & computingGeography: International — IETFPeriod: 2013

Common questions

Is 6979 a prime number?

No, 6979 is not prime.

What are the factors of 6979?

The factors of 6979 are 1, 7, 997, 6979.

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