Could you help me find the GCF using 3 method?
1. 36, 45
2. 18, 12, 36
3. 20, 26, 24
thank you.
2007-07-12 03:34:25 · 3 answers · asked by Scarlet 3 in Science & Mathematics ➔ Mathematics
Greatest Common Factor
1,
36 = 2 x 2 x 3 x 3
45 = 3 x 3 x 5
GCF = 3 x 3 = 9
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2)
18 = 2 x 3 x 3
12 = 2 x 2 x 3
36 = 2 x 2 x 3 x 3
GCF = 2 x 3 = 6
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2007-07-12 03:49:40 · answer #1 · answered by SAMUEL D 7 · 0⤊ 0⤋
split each of the numbers as multiples of smaller numbers (as small as possible). Then pick out the numbers which are common :
1) 36 = 2*2*3*3 ; 45 = 3*3*5
we see 3*3 is common in the above partitions. So GCF of 36 and 45 is 3*3 = 9
2) 18 = 2*3*3; 12 = 2*2*3; 36 = 2*2*3*3
GCF = 2*3 = 6
3) 20 = 2*2*5; 26 = 2*13; 24 = 2*2*2*3
GCF =2
2007-07-12 03:46:31 · answer #2 · answered by Surendra G 1 · 0⤊ 0⤋
1. 36 = 3, 3, 2, 2
45 = 3, 3, 5
2. 18 = 3, 3, 2
12 = 3, 2, 2
36 = 3, 3, 2, 2
3. 20 = 5, 2, 2
26 = 13, 2
24 = 3, 2, 2, 2
2007-07-12 03:38:51 · answer #3 · answered by miggitymaggz 5 · 0⤊ 0⤋