7 and 5 are prime numbers, but 3*2=6
Wiki User
∙ 2010-09-30 21:32:361. As 7 is a prime number.
210
It is: 210
1890
It is the LCM which is 210
the lowest number i can think of is 840
well, no number goes int 5 or 7 that can also go into 8 or 4.
The smallest number that is divisible by 5, 6, and 7 is 210.
The number is 2 because (6*2)-5 = 7
LCM(4, 5, 6, 7, 8, 9, 10) =2520
Their LCM is 280
the problem is impossible... i know i have the same problem