443
This number is a prime.
Just showing those entries submitted by 'Carmichael': (Click here to show all)
443 is the 24th (half of 4 * 4 * 3) Sophie Germain
prime, since 443*2+1 = 887 which is also is prime (and
8 + 8 + 7 is the successor to 24). [Carmichael]
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