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What is the greatest common factor of 21 and 45?
The GCF of 21 and 45 is 3. One way to determine the greatest common factor is to find all the factors of the numbers and compare them. The factors of 21 are 1, 3, 7, and 21. The factors of 45 are 1, 3, 5, 9, 15, and 45. The common factors are 1 and 3. Therefore, the greatest common factor is 3. The greatest common factor can also be calculated by identifying the common prime factors and multiplying them together. The prime factors of 21 are 3 and 7. The prime factors of 45 are 3, 3, and 5. The prime factors in common are a single 3, so the greatest common factor is 3.
What is the least common multiple of 21 and 45?
LCM of 21 and 45=315 Factors of 21= 3x7 Factors of 45=3x3x5 Lcm= 3x5x7x3=315
What are the factors of 21 and 45?
Factors of 21: 1, 3, 7, 21 Factors of 45: 1, 3, 5, 9, 15, 45
What is the common factor of 45 and 63?
The factors of 45 are: 1, 3, 5, 9, 15, 45The factors of 63 are: 1, 3, 7, 9, 21, 63The common factors are: 1, 3, 9
What are the common factors of 35 and 45?
The common factors of 35 and 45 are: 1 and 5
What are the factors of 45 and 63?
The factors of 45 are: 1, 3, 5, 9, 15, 45 The factors of 63 are: 1, 3, 7, 9, 21, 63
What are the common factors of 24 and 45?
The common factors of 24 and 45 are: 1 and 31 and 3
What are the factors and common factors of 45?
The factors of 45 are 1, 3, 5, 9, 15, 45. For them to be common, they need to be compared to another set of factors.
What are the the greatest common factors of 45 and 15?
The factors of 21 are: 1, 3, 7, 21The factors of 45 are: 1, 3, 5, 9, 15, 45The common factors are: 1, 3The Greatest Common Factor (GCF) is: 3
What are the common factors of 45 and 54?
The common factors of 45 and 54 are: 1, 3, and 9
What are the common factors of 18 and 45?
The common factors of 18 and 45 are 1, 3 and 9.
What are the common factors of 45 and 108?
The common factors of 45 and 108 are: 1, 3 & 9.
