Question 175075
_ x _ x _ = 4897 
The numbers must be prime numbers. 
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Procedure: 
1st take the square root of 4897 to determine the highest 
possible factor.
sqrt(4897) is around 69.
2nd Divide by primes that are less than 69 like 67,61, etc:
Results: 4897/59 = 83
3rd look for factors of 83
sqrt(83) is around 9
4th 7 and 3 are not factors of 83
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Conclusion: 4897 = 59*83
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Cheers,
Stan H.