SOLUTION: Determine the largest prime divisor of 87! + 88! .

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Question 129100: Determine the largest prime divisor of 87! + 88! .
Answer by solver91311(24713) About Me  (Show Source):
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88%21=88%2A87%21, so 87%21%2B88%21=87%21%281%2B88%29=87%21%2889%29. As luck would have it, 89 is prime.