Concept Used:
A prime number is a natural number greater than 1 that has exactly two distinct divisors 1 and itself.
Solution:
157: Not divisible by 2, 3, 5, 7, 11. ..
121: 112 , Not prime.
1331: 113 , Not prime
81: 34 , Not prime.
Thus, the prime number is 157.
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90 Mins English English100 Questions100 Marks90 Mins English English40 Questions30 Marks25 Mins EnglishFour prime numbers are arranged in ascending order. The product of first three numbers is 255 and the product of last three numbers is 1955. The largest prime number is
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