Let’s know how to calculate LCM of 3 and 7.

**Answer: The LCM of 3 and 7 is 21 .**

Also, what is the LCM of 3 and 9?

Answer: The LCM of 3 and 9 is **9** .

Next, what are 7 common multiples of 5 and 3?

The common multiples of 3 and 7 to 70 are **21, 42, and 63** . A multiple of a number is a number that is the product of another number.

Also to know what is the GCF of 3 and 7? GCF of 3 and 7 by listing common factors

The greatest common factor of 3 and 7 is **1** .

What is the LCM of 3 and 4?

Answer: LCM of 3 and 4 is **12** .

**What is the LCM of 3 and 3?**

What is the LCM of 3 and 3? The LCM of 50 and 100 is **3** . To find the smallest common multiple (LCM) of 3 and 3, we need to find the multiples of 3 (multiples of 3 = 3, 6, 9, 12, …) and choose the smallest multiple that is completely divisible by 3. be and 3, that is, 3.

**What is the HCF of 14 and 21?**

Answer: HCF of 14 and 21 is **7** .

**What is the LCM of 8 and 3?**

What is the LCM of 3 and 8? Answer: The LCM of 3 and 8 is **24** .

**What is the LCM of 7/10 and 3?**

Therefore, the LCM of 3, 7, and 10 is **210** .

**What are the first three common multiples of 2 7?**

Step 1: List some multiples of 2 (2, 4, 6, 8, 10, 12, 14,…) and 7 (7, 14, 21, 28, 35, 42, 49,…) . Step 2: Among the multiples of 2 and 7 the common multiples are **14, 28** ,. , , Step 3: The least common multiple of 2 and 7 is 14.

**3 What is the smallest common multiple of 7 and 11?**

The Least Common Common Factor (LCM) of 7, 3, 7, 11 is **231** .

**What is the GCF for 2 and 7?**

Answer: The GCF of 2 and 7 is **1** .

**What is the GCF of 7 and 7?**

What is the GCF of 7 and 7? The GCF of 7 and 7 is **7** .

**What is the HCF of 4 and 8?**

HCF of 4 and 8 by prime factorization

As seen, 4 and 8 have common prime factors. Hence HCF of 4 and 8 is **2 2 × = 4** .

**What is the GCF of 3 and 4?**

GCF of 3 and 4 by listing common factors

The greatest common factor of 3 and 4 is **1** .

**What is the HCF of 12 and 16?**

Answer: HCF of 12 and 16 is **4** .

**What is the GCF of 3 and 3?**

What is the GCF of 3 and 3? 3 and 3. The GCF of **is 3** .

**What is the LCM of 3 and 10?**

Answer: The LCM of 3 and 10 is **30** .

**What is the HCF of 14?**

Factors of 14 = 1, 2, 7 and 14. Factors of 18 = 1, 2, 3, 6, 9 and 18. Therefore, the common factor of 14 **and 18 = 1 and 2** .

**What is the HCF of 13?**

Solution: The greatest number which exactly divides 13 and 19 has the greatest common factor, that is, the HCF of 13 and 19. Factors 13 and 19: Factors of 13 = **1, 13** .

**What is the HCF of 49?**

To find the HCF of 49 and 56, we will find the prime factorization of the given numbers, i.e. 49 = 7 × 7; 40 = 2 × 2 × 2 × 5. Since the only common prime factor of 25 and 40 is 5. Therefore, **HCF(49, 56) = 7** .

**What is the GCF of 72 and 36?**

Answer: GCF of 72 and **36 is 36** .

**What is the LCM of 10 and 15?**

Answer: The LCM of 10 and 15 is **30** .

**What is the LCM of 10 and 7?**

The LCM of 7 and 10 is **70** .

**3 What is the LCM of 7 and 15?**

The Least Common Common Factor (LCM) of 3, 7, and 15 is **105** .