74359...53743 (70-digits)
(another
Prime Pages
' Curiosity)
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Prime Puzzio
Test Number
GIMPS
has discovered a new
largest known prime number
: 2
82589933
-1 (24,862,048 digits)
7435961149 1511672232 3924125729 3313331347 3834194214 9150956360 1617653743
The concatenation of the first twenty-five
primes
with sum of digits
congruent
to 0(
mod
7). Curiously, it remains prime if we concatenate it in the reverse order. Note that the sum of digits of 25 and 70 are both
congruent
to 0(mod 7). [
Antonious
]
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