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The least common factor of any group of two or more numbers is always 1. The greatest common factor of 3, 5, 7, and 8 is also 1. The least common multiple (LCM) is the multiple of the highest power of prime factors in two or more numbers. Example: LCM of 3, 5, 7, and 8 is 840, which is the multiple of the highest power of all their prime factors, 23 x 3 x 5 x 7.
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What is the least common factor of 3 and 5?
The least common factor of any two or more positive integers is always 1The factors of 3 are 1 and 3.The factors of 5 are 1 and 5.The only common factor is 1.
What is the least common factor of 3 5 9 and 8?
The least common factor of any set of positive integers is 1.
What is the least common factor of 9 and 15?
Most of the time, math questions are about the greatest common factor or the least common multiple, not the least common factor. The least common factor of any two numbers would typically be 1. The factors of 15 are 1, 3, 5, and 15. The factors of 9 are 1, 3, and 9. The greatest common factor is 3. The prime factors of 15 are 3 and 5. The prime factors of 9 are 3 and 3. So, take the 3 and 5 prime factors of 15, and then the second 3 prime factor of 9, multiply them together, so 3 x 5 x 3 = 45 is the least common multiple.
What is the least common factor of 5 and 8?
The least common factor of 5 and 8 is 1. The least common factor of any set of integers is 1.
What is the least common factor of 45 and 81?
The least common factor of any numbers is typically 1. The factors of 45 are 1, 3, 5, 9, 15, and 45. The factors of 81 are 1, 3, 9, 27, and 81. The common factors are 1, 3, and 9. The least (smallest) common factor is 1.
