Which is the HCF of 3 and 9?

Which is the HCF of 3 and 9?

3
Answer: HCF of 3 and 9 is 3.

How do you find 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 is the factor of 9 and 3?

The biggest common factor number is the GCF number. So the greatest common factor 3 and 9 is 3.

What is the LCM for 9 and 9?

What is the LCM of 9 and 9? The LCM of 9 and 9 is 9.

What is the HCF of 8 and 9 and 25?

1
⇒ HCF(8, 9, 25) = 1. Therefore, the HCF of 8, 9 and 25 is 1.

What is relation between LCM and HCF?

The Relation Between HCF and LCM of co-prime numbers is the product of the numbers = LCM of Co-Prime numbers, as the HCF of co-prime numbers is equal to 1.

The HCF of 3 and 9 is 3. To calculate the HCF (Highest Common Factor) of 3 and 9, we need to factor each number (factors of 3 = 1, 3; factors of 9 = 1, 3, 9) and choose the highest factor that exactly divides both 3 and 9, i.e., 3.

Which is the LCM of all 3 numbers?

As per the definition, LCM is the smallest number that is common in all 3 numbers multiples. Thus, 42 is the LCM of 6, 7, 21. LCM of Three Numbers using Prime Factorization Make a note of all the Prime Factors of the given numbers.

Which is the correct formula for HCF and LCM?

HCF = HCF (Numerators) / LCM (Denominators) LCM = LCM (Numerators) / HCF (Denominators) A natural number , greater than 1, can always be written as sum of greatest common divisor (gcd) and lowest common multiple (lcm) of two natural numbers , i.e. , x=gcd (a,b)+lcm (a,b). Let’s prove it.

Which is the largest number in HCF format?

For example, consider the numbers 30 (2 x 3 x 5), 36 (2 x 2 x 3 x 3), 42 (2 x 3 x 7), 45 (3 x 3 x 5). 3 is the largest number that divides each of these numbers, and hence, is the HCF for these numbers. HCF is also known as Greatest Common Divisor (GCD).