The question is asking for the count of prime numbers between 2 and 30. A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself.
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The product of 4 consecutive numbers is always divisible by which of the following numbers? (a) 10 (b) 22 (c) 24 (d) 48
**Step 1:** To form the smallest number, we should arrange the digits in ascending order: 0, 3, 5, 6.
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The sum of the digits of a two-digit number is 12. The number obtained by interchanging its digits exceeds the given number by 18. The number is: (a) 76 (b) 67 (c) 27 (d) 57
A number is divisible by 72 if it is divisible by its co-prime factors, 8 and 9.
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If each even digit is divided by 2 and 2 is added to each odd digit in the number 4723361, what will be the sum of the largest and the smallest digits thus formed? (a) 12 (b) 10 (c) 11 (d) 9