Q. Find the greatest of the four least common multiples of 3, 5 and 7.
options
(a)1
(b)420
(c)315
(d)105

• LCM of 3,5,7 =3*5*7=105
  asking for greatest of the four LCM of 3, 5 and 7 from four options
  from options
  420=4*105(greatest)
  315=3*105
  
  (b)420
  
  
• 10 years agoHelpfull: Yes(48) No(0)
• The ans is 420
  
• 10 years agoHelpfull: Yes(2) No(0)
• please give reason for your answer
• 10 years agoHelpfull: Yes(2) No(0)
• lcm of 3,5,7 is 105 . so 105 is divisible by 3,5,7. but they have asked greatest number which is multiple of 3,5,7 . so 105*4=420 which is divisible by 3,5,7 and is greatest of 4 option provided
• 10 years agoHelpfull: Yes(2) No(0)
• ans:420
  only 420 is dividible by 3,5 and 7
• 10 years agoHelpfull: Yes(1) No(9)
• question is nothing but..highest common factor of 3,5,7
  hcf=1
• 10 years agoHelpfull: Yes(1) No(6)
• ans is 420
• 10 years agoHelpfull: Yes(0) No(0)
• the ans is 140
• 10 years agoHelpfull: Yes(0) No(3)
• L.C.M. of 3,5,7 is 105
• 10 years agoHelpfull: Yes(0) No(2)
• LCM of 3,5,7 =3*5*7=105
  
• 10 years agoHelpfull: Yes(0) No(2)
• if ans is 420 then please explain properly without using hit and trial method....
• 10 years agoHelpfull: Yes(0) No(1)
• the greatest multiples of 3,5 and 7 is 420 as all the option is devided by 3,5 and 7.but 420 is the largest among them
• 9 years agoHelpfull: Yes(0) No(0)
• LCM of 3 5 and 7 I.e 105
• 9 years agoHelpfull: Yes(0) No(0)
• Answer is 420
• 4 years agoHelpfull: Yes(0) No(0)
• d
  taking lcm of 3,5,7 =105
• 1 year agoHelpfull: Yes(0) No(0)