7*4
A number which can go into a number is called a factor.
factors of 28 = 1, 2, 4, 7, 14, 28
to find the factors of a certain number, divide this number by numbers from 1 to whatever the number is, and if the answer is an integer (whole number), it is a factor, e.g.
28: 28 divided by 4=7 therefore, both 4 and 7 are factors of 28
28 divided by 14=2 therefore 14 and 2 are factors of 28
28 divided by 28=1 therefore 28 and 1 are factors of 28
therefore, factors of 28 are 1, 28, 2, 14, 4, 7
2 goes evenly into 4 and 28
2
One.
The highest common factor of both number is 28
7
It is: 1
The HCF is 4
2
Any of their factors.
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.
The number that goes into both 28 and 30 is 2. This is because both 28 and 30 are even numbers, and 2 is the only common factor they share. Additionally, both 28 and 30 can be divided evenly by 2, resulting in whole numbers.
1, 2, and 4