The least common multiple (LCM) of 9 and 7 is **63**. To find the LCM, you can use the prime factorization method. First, list the prime factors of 9: 3 x 3. Then, list the prime factors of 7: 7. Finally, multiply these prime factors together, which will give you the LCM: 3 x 3 x 7 = 63.

The least common multiple (LCM) of 9 and 7 is the smallest positive integer that is divisible by both 9 and 7. To find the LCM, you can use the prime factorization method.

First, list the prime factors of 9: 3 x 3. Then, list the prime factors of 7: 7. Finally, multiply these prime factors together, which will give you the LCM: 3 x 3 x 7 = 63.

You can also use the Euclidean algorithm to calculate the LCM. This approach involves repeatedly dividing the two numbers by a common factor until the remainder is 0. The last common factor will be the LCM. For example, to find the LCM of 9 and 7, you would divide 9 and 7 by their greatest common factor (1) until there is no common factor. The last common factor is the LCM, which is 63.

You can also use the LCM formula, which is LCM = (a x b) / gcd(a, b), to find the LCM, where a and b are the two numbers and gcd is the greatest common divisor of the two numbers.

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