Answer:
10 and 2, 2 and 24, 4 and 6
Step-by-step explanation:
do the prime factor tree method
10 and 2:
10: 2 x 5
2: 2
gcf/hcf : 2
2 and 24 :
2: 2
24: 2 x 2 x2 x 3
gcf/hcf : 2
4 and 6 :
4: 2 x 2
6: 2x 3
gcf/hcf : 2
why 6 and 12 don't work
6: 2 x 3
12: 2 x 2 x 3
they have 3 in common as well, meaning the hcf/gcf would be 2 x 3 which is 6, not 2
