2007-01-21 22:24:44 · 3 answers · asked by tocatchtheuncatchableii 3 in Science & Mathematics ➔ Mathematics
Well, I am going to first find the prime factorization of each. If you don't think you've learned prime factorization yet, then let me know in the additional details section.
50 = 5 x 5 x 2
75 = 5 x 5 x 3
115 = 5 x 23
The HCF therefore is 5. Basically you look at the prime factorization and find what all three numbers share. For example if the prime factorizations were
2 x 2 x 2 x 3 x 5 x 7
2 x 2 x 5
2 x 2 x 2 x 2 x 2 x 5 x 7
Then the HCF would be 2 x 2 x 5 = 20, because all three share the 2 x 2 x 5.
2007-01-21 22:31:53 · answer #1 · answered by Steven 2 · 0⤊ 0⤋
50 = 2 * 5^2
75 = 3 * 5^2
115 = 5 * 23
Take prime factors common in all numbers
HCF is 5
2007-01-22 06:27:18 · answer #2 · answered by Tom :: Athier than Thou 6 · 0⤊ 0⤋
50=2*5^2
75=3*5^2
115=5*23
LCf=2*3*5^2*23=3450
2007-01-22 06:31:37 · answer #3 · answered by santmann2002 7 · 0⤊ 0⤋