not that im dumb but my mind isnt working at the moment and this homework has to be in in half and hour so whats the answer to these questions please?!
Find the highest common factor (HCF) of 72 and 84? is it 12
and
Express 72 as a product of its prime factors.
thanx!
2007-11-20 01:16:13 · 6 answers · asked by Saiyan_Pokemaster 4 in Education & Reference ➔ Homework Help
72=1.2.3.4,6,8,9,12,18,24,36,72
84=1,2,3,4,6,7,12,14,21,24,42,84
12=hcf
72=2x2x2x3x3
2007-11-20 01:25:56 · answer #1 · answered by Dave aka Spider Monkey 7 · 0⤊ 0⤋
Prime factors of -
72 = 2x2x2x3x3 ........... your last answer
84 = 2x2x3x7
Here we find that factors common to both 72 and 84 are 2, 2 and 3. Hence the highest common factor = 2x2x3 = 12 Answer
2007-11-20 09:51:56 · answer #2 · answered by Pramod Kumar 7 · 0⤊ 0⤋
yes 12 is the HFC as my mathematical knowledge , the prime factors of 72 is 2 and 3. (2 x 2 x 2 x 3 x 3)
2007-11-20 09:26:33 · answer #3 · answered by tha4 2 · 0⤊ 0⤋
hcf of 72 and 84 is 12
72 as a product of its prime factors is 2x2x2x3x3
2007-11-20 09:27:47 · answer #4 · answered by Anonymous · 0⤊ 0⤋
You can make a FACTOR TREE
Prime Factors:
72: (2)^3 (3)^2
84: (2)^2 (7) (3)
To get the GCF, get the common factors with the lowest exponents and multiply then you'll get the GCF!!!
GCF Greatest common factor: (2)^2 (3) =12
YOU're right it's 12!!!
2007-11-20 09:31:51 · answer #5 · answered by gm_2422 2 · 0⤊ 0⤋
yes to your first question.
72=2x2x2x3x3
2007-11-20 09:24:59 · answer #6 · answered by Marcella S 5 · 0⤊ 0⤋