Best answer:
By trial and error confirm that low primes like 3, 5, 7, 11, 13, etc are not a factor
Suspect it is that old chestnut, a product of 2 largish primes
The square root is about 299.
Primes < 299 in descending order, (from primes list) are:-
293, 283, 281, 277, 271, 269, 263, 257 ….
Test for products near...
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Best answer: By trial and error confirm that low primes like 3, 5, 7, 11, 13, etc are not a factor
Suspect it is that old chestnut, a product of 2 largish primes
The square root is about 299.
Primes < 299 in descending order, (from primes list) are:-
293, 283, 281, 277, 271, 269, 263, 257 ….
Test for products near 89701
293*306 = 89658, so not 293
283*317 = 89711, so not 283
281* 319 = 89639, so not 281
277* 324 = 89748, so not 277
271*331 = 89701 Bingo !
6 answers
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8 hours ago