28. If you divide 28 into 1,400 you get 1|50. 28 goes into 28 once.
2 goes evenly into 4 and 28
28 goes into 7 and 2, while 30 goes into 15 and 2.
Any multiple of 28.
28
7x6=42 7x4=28
28 goes into 7 0.25 times. 7 goes into 28 4 times.
28, 14, 7, 4, 2, 1
seven
39
7.
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.