It makes no sense to ask for the greatest common multiple of two numbers. If the numbers are two and three, a common multiple is 2 x 3 x any number you like ! Since the third number can be as big as you choose, so there is no limit to a g.c.m.
You probably meant to ask for the least common multiple. Since 12 and 37 are mutually prime, the l.c.m is just 12 x 37 or 444.
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Since 37 is a prime number, the only number that both it and 12 will divide into is 1.
The factors of 37 are 1 and 37. The factors of 81 are 1, 3, 9, 27, and 81. They have only one factor in common - 1. Since the greatest common factor of 37 and 81 is 1, they are relatively prime. You can also look at the prime factors to determine the greatest common factor. 37 is a prime number, so its only prime factor is itself, 37. The prime factors of 81 are 3, 3, 3, and 3. They have no prime factors in common, so they are relatively prime, which means their greatest common factor is 1.
12 37/100 A mixed number is a whole number along with a fraction. So it is 12 and 37 one-hundredths.
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