1, 2, 4
1 2 4 7 14 28
1, 2, 4.
1, 2, 4, 7, 8, 14, 16, 28, 56, 112.
1, 2, and 4 go evenly into both 28 and 36.
428 ÷ 4 = 732 ÷ 4 = 8 (no remainder)
21
The numbers that go into 28 evenly are 1, 2, 4, 7, 14, and 28. The numbers that go into 56 evenly are 1, 2, 4, 7, 8, 14, 28, and 56.
4
The HCF is 4
I believe it is 28.
1, 2 and 4.