Just 1.
Seven and tree are both prime numbers, so the only number that goes into both of them is one.
The number 7 can be equally divided by the numbers 1, and 7. If divided by 2, 3, 4, or 5, you would get a fraction or a number with a decimal point.
well, no number goes int 5 or 7 that can also go into 8 or 4.
The number is 1.
210 is the number which is completely divisible by all of these numbers but not 4.
136
1. 1x3=3 1x7=7
It looks to me like 3 may be the next number since it goes +7, -7, +3, +3, -7, +7, -7, then maybe +3, +3 again. Anybody else see something different?
3 & 7.
105
31/7 = 4r3r7 number is 4.428571429
Just 1
13 x (7 - 4)
When figuring out what number goes both into 21 and 28, you should look at the factor paris. 21: 1 x 21, 3 x 7 28: 1, 28, 2 x 14, 4 x 7 7 goes into both 21 and 28.
2 and 7/4 is a mixed number. It can also be written as 3 and 3/4
11