Advanced Engineering Mathematics
10th Edition
ISBN: 9780470458365
Author: Erwin Kreyszig
Publisher: Wiley, John & Sons, Incorporated
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(This exercise constructs another proof of the infinitude of pimes) Show that the integer Qn = n! + 1, where n is a positive integer, has a prime divisor greater than n. Conclude that there are infinitely many primes.
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