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420-digit prime
420 digits
Public post, 26 June 2025: “Wow, a prime number with 420 digits!” A grid of 1s and 8s, a G in the gaps.
Elon posted a picture of digits arranged as a Grok G, and called it a prime with 420 digits. The 420 is the written count. The integer lives in the image.
What it supports
A dated public utterance. 26 June 2025. Status 1938242452458205467. Family is 420, digit count, not 42. Community checks followed. Grokipedia records the post and the glyph.
What it does not
This office does not re-prove primality. Some readers counted 420 cells in a 14 × 30 grid, including blanks, and a shorter decimal string. The caption is the object. The pictured integer is the exhibit. Not a physical 420. Not natal 4°20′.
ExactnessAuthored use
Form420
Unitdigits
Strengthhard
When2025-06-26