Find the L.C.M of 112, 160 and 188.
  • 52640
  • 52680
  • 60000
  • None of the above
Number of primes between 1 to 100 is
  • 26
  • 24
  • 22
  • 25
LCM of two numbers isThen which of the following is not the HCF of the numbers?
  • 45
  • 60
  • 80
  • 90
The LCM and HCF of the numbers 3,8,18,36 is
  • 72,1
  • 36 ,2
  • 72 ,2
  • 36 ,2
Which of the following is correct
  • If a number exactly divides the sum of three numbers, it must exactly divide the numbers separately.
  • If the sum of the digits of a number is divisible by 3, then the number itself is divisible by 9.
  • A number with 4 or more digits is divisible by 8, if the number formed by the last three digits is divisible by 8
  • None of the above
In a morning walk, three persons step off together. Their steps measure 80 cm, 85 cm and 90 cm respectively. What is the minimum distance each should walk so that all can cover the same distance in complete steps?
  • 12240 cm.
  • 12245 cm
  • 16000 cm
  • None of the above
The smallest prime number is ____
  • 2
  • 3
  • 1
  • 0
What least value should be given to * so that the number 8456*4107 is divisible by 3?
  • 1
  • 2
  • 3
  • 0
Find the least number which when divided by 12, 16, 24 and 36 leaves a remainder 7 in each case.
  • 150
  • 151
  • 142
  • None of the above
Which of the following numbers is a perfect number?
  • 8
  • 28
  • 15
  • 4
Which of the following are co-primes number
  • 9,10
  • 6,8
  • 15,18
  • 8,10
Which one of the following is a prime number
  • 437
  • 373
  • 161
  • 221
Which one of the following number is divisible by 3?
  • 619
  • 726
  • 626
  • 536
what least value should be given to * so that the number 856*39 is divisible by 9 ?
  • 2
  • 4
  • 5
  • 6
What is the sum of the prime numbers between 70 and 85?
  • 315
  • 306
  • 321
  • 303
Find the HCF of the following numbers using prime factorization method 504, 980
  • 28
  • 56
  • 14
  • 1
what is the least number  divisible by 15,20,24,32 and 36 ?
  • 2880
  • 1440
  • 1660
  • 1560
Which one of the following number is divisible by 4?
  • 86751
  • 98431
  • 73545
  • 98464
what is HCF of two consecutive natural numbers ?
  • 0
  • 2
  • 1
  • None of these
The smallest whole numbers is
  • 1
  • -1
  • 0
  • 3
0 h : 0 m : 1 s

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