To find the least common multiple (LCM) of 9, 21, 15, and 35, we first need to find the prime factorization of each number.
9 = 3^2 21 = 3 * 7 15 = 3 * 5 35 = 5 * 7
Then, we take the highest power of each prime factor that appears in any of the numbers. The LCM is the product of these prime factors raised to their highest powers.
Therefore, the LCM of 9, 21, 15, and 35 is 3^2 * 5 * 7 = 315.
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The LCM of 3 and 6 is 6 The LCM of 5 and 7 is 35. The LCM of 8 and 9 is 72. The LCM of 12 and 15 is 60.
The least common multiple is the smallest positive number that is the multiple of two or more numbers. 3: 3, 6, 9, 12, 15, 18, 21 21: 21 The LCM of 3 and 21 is 21.
The LCM of 6, 9, and 21 is 126
The LCM of 9 and 15 is 45