What two numbers have a HCF of 1?

What two numbers have a HCF of 1?

Answer: If the HCF of two numbers is 1, the numbers are called co-prime numbers.

What are 2 numbers that have the LCM of 30?

Calculator Use For example, LCM(2,3) = 6 and LCM(6,10) = 30. The LCM of two or more numbers is the smallest number that is evenly divisible by all numbers in the set.

How do you find 2 numbers when LCM and HCF are given?

First we need to find the highest common factor (H.C.F.) of 15 and 18 which is 3. Then we need to find the lowest common multiple (L.C.M.) of 15 and 18 which is 90. Therefore, product of H.C.F. and L.C.M. of 15 and 18 = product of 15 and 18.

What will be the LCM of two numbers if their HCF is 1?

Since the HCF of co-prime numbers is equal to 1, the LCM of two co-prime numbers is the same as the product of the numbers. Look at the given example to verify the relation. For example: 11 and 31 are two co-prime numbers. Let’s verify LCM of given co-prime Numbers is equal to the product of the given numbers.

What is the product of HCF and LCM?

The product of the HCF and LCM of two numbers is equal to the product of the two numbers.

What is the LCM of 12and 20?

60
What is the LCM of 12 and 20? Answer: LCM of 12 and 20 is 60.

Which is the common factor in HCF and LCM?

The HCF is the common factor for both numbers whereas the LCM contains all the unique factors of both numbers. So, 2 x 2 or 4 is a common factor for both numbers. The factors remaining are 7 and 9.

How to calculate HCF for 20, 25, and 30?

Prime factors of 25: 5 × 5. Prime factors of 30: 2 × 3 × 5. Step 2: Highlight the numbers that are common in the prime factors of all three numbers. 20: 2 × 2 × 5. 25: 5 × 5. 30: 2 × 3 × 5. So, HCF (20, 25, 30) = 5. If there is more than one common number, multiply all common numbers to get the HCF.

Which is the common factor for two numbers?

The HCF is the common factor for both numbers whereas the LCM contains all the unique factors of both numbers. So, 2 x 2 or 4 is a common factor for both numbers. The factors remaining are 7 and 9. So, 7 is a factor of one number and 9 is the factor of the second number.