No, 3 is not a factor of 40.
80 / \ 40 2 / \ 20 2 / \ 10 2 / \ 5 2 24*5
There are various examples (since 40 has 6 proper divisors, or 8 in total), but the most simple is grouping it into a power of each value:40/ \ 8 5 /|\ 2 2 2Thus, we can conclude that 40 = 23 * 5.
Here is a factor tree of eight: 8 / \ 4 2 / \ 2 2
80 2, 40 2, 2, 20 2, 2, 2, 10 2, 2, 2, 2, 5
40 20,2 10,2,2 5,2,2,2
40 20,2 10,2,2 5,2,2,2
40 20,2 10,2,2 5,2,2,2
40 20,2 10,2,2 5,2,2,2
40 20,2 10,2,2 5,2,2,2
It's 35
40 20,2 10,2,2 5,2,2,2
40 20,2 10,2,2 5,2,2,2
40 20,2 10,2,2 5,2,2,2
40/ \4*10/ \2*2 5*2Hope this helped you
All I did was make a factor tree. The GCF (Greatest Common Factor) is 5. :)
The Greatest Common Factor of 40 and 100 is 20. 5x2x2. Use a factor tree and learn math!!!!!!!!!!!!!!