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Forum: mersenne.ca 2021-12-29, 11:06
Replies: 13
Views: 1,461
Posted By alpertron
The "number of bits" or "bitsize" in this context...

The "number of bits" or "bitsize" in this context is the logarithm to the base 2 of the number without rounding up to the next integer. That's why the sum should be 1999.
Forum: mersenne.ca 2021-12-29, 01:34
Replies: 13
Views: 1,461
Posted By alpertron
Sum of bits of prime factors exceed exponent on M1999

The number M1999 is completely factored.

In the page https://www.mersenne.ca/manyfactors.php?s=b&o=d&exp_min=1999&exp_max=1999&fac_min=5&fac_max=20&pct_min=0.000000&pct_max=100.000000 the sum of...
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