8, 5 and 3 can all go into 120 evenly.
120
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120
120
840
5, 7, and 3 go into 105.
It is: 3*5*7 = 105
whenever I start factoring a number I always start with the lowest prime number and then go up. Start with 2 5100/2 = 2550 2550/2 = 1275 (this is not divisible by 2 so go to the next prime number... 3) 1275/3 = 425 (this is not divisible by 2 or 3 so go to the next prime number...5) 425/5 = 85 (this is not divisible by 2 or 3 so go to the next prime number... 5) 85/5 = 17 (this is a prime number so it can not be divide any more) now take all the numbers you used to divide the larger number. These number will include... 2,2,3,5,5, and 17 these are all of the prime factors of 5100... 2x2x3x5x5x17=5100
8
The only number which will go evenly into all of them is 1.
1
165
60
The smallest number in which 2, 3, 4, and 5 go into is 60.
60
It is: 105