Want this question answered?
100
The GCF is 9.
The GCF is 1.
The GCF is 20.
The GCF is 1.
Since 5 is a factor of 15, it is automatically the GCF.
5 The prime factors of 30 are 2, 3, 5
The value of Franklin Mint and other private mint sets are based primarily the silver bullion value, but other factors include rarity, condition, attractiveness, completeness, etc. Start with the bullion value. The Rockwell's Fondest Memories set has 10 1500-grain sterling silver ingots. Silver bullion value as of today is calculated as follows: (1500 grains*10 ingots = 15000 grains; 15000 grains/480 grains/oz = 31.25 troy oz Sterling; 31.25 oz * 0.925 purity = 28.9 oz. pure silver; 28.9 oz silver @ $13.67/oz = $395). The silver price is constantly changing, so the bullion value changes with it. This particular set is not unusually rare. If you are buying this set from a coin dealer or website, expect to pay a 20%-30% premium over the bullion value. If you are selling, expect to get an offer of 20%-30% less. For details of this particular set, you can check it out on my website at http://www.franklin-mint-silver.com/franklin-mint-rockwells-fondest-memories-ingots.htm.