Which of the following numbers is prime ...

Which of the following numbers is prime number? (a)91 (b) 81 (c) 87 (d) 97

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RD SHARMA ENGLISH-WHOLE NUMBERS-All Questions

The predecessor of 1 in natural number is 0 (b) 2 (c) -1 (d)...
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The predecessor of 1 in whole number is (a)0 (b) -1 (c) 2 (d)...
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The predecessor of 1 million is (a)9999 (b)99999 (c)99999...
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The successor of 1 million is (a)10001 (b) 100001 (c)...
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The product of the successor and predecessor of 99 is (a)9800 ...
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The product of a whole number (other than zero) and its successor is...
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The product of the predecessor and successor of an odd natural numb...
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The product of the predecessor and successor of an even natural numb...
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The successor of the smallest prime number is
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If x\ a n d\ y are co-primes, then their LCM is (a)1 (b) x/y (...
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The HCF of two co-primes is (a) the smaller number (b) the larger num...
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The smallest number which is neither prime no composite is 0 ...
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The product of any natural number and the smallest prime is (a)an e...
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Every counting number has an infinite number of (a)factors ...
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The product of two numbers is 1530 and their HCF is 15. the LCM of t...
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The least number divisible by each of the numbers 15, 20, 24 and 32 ...
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The greatest number which divides 134 and 167 leaving 2 as remainder...
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Which of the following numbers is prime number? (a)91 (b) ...
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If two numbers are equal, then (a)their LCM is equal to their HCF ( b)...
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a\ a n d\ b are two co-primes. Which of the following is/are true? ...
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