Question

can some one help me with the question plz...
what is the H.C.F of 25, 36 and 45

Answer 1

Until you get a feel for the factors of common numbers, its best to list all of the factors of numbers, and then look to see which one is greatest. Like so:

25: 1,5,25
36: 1,2,3,4,6,9,12,18,36
45: 1,5,9,45
So the greatest number that all three of these sets have in common is 5, so the HCF is 5 (also known as the GCF, greatest common factor)

Answer 2

Do you mean 25, (35) and 45? if so its 5

Answer 3

Oh, sorry. Yea, Jessica Moore and I were thinking on the same terms. The HGF is 1 with the numbers you gave us, 5 if the middle number is 35

Answer 4

nope its 36 not 35 @julianstanley

Answer 5

Then the greatest number all 3 of them have in common is the number 1

Answer 6

Remember that all numbers have a factor of 1, and themselves. Because 1 times any number is itself.

Answer 7

okay thnx @julianstanley