What two numbers have a HCF of 15?

3 x 5 = 15. The greatest common factor is 15. When two numbers have no prime factors in common, their greatest common factor is 1.

What is the factor of 15?

Factors of 15 by Prime Factorization The factors of 15 are 1, 3, 5, and 15.

How are HCF and LCM are related to two numbers?

Co-relation between HCF and LCM The product of the H.C.F. and L.C.M. of any two numbers is always equal to the product of those two numbers.

Can two no have 15 as HCF and 340 as LCM?

HCF stands for Highest Common Factor while, LCM stands for Least Common Multiple. According to the question, HCF = 12 and LCM = 340 . But 340 is not divisible by 12. So, two numbers cannot have 12 and 340 as their HCF and LCM.

What is the LCM if the HCF is 15?

If the HCF is 15, the LCM would be any multiple of 15 that is either equal to or more than highest of the two given numbers. There isn’t enough data to give unique LCM at this stage.

What is the LCM of 15 and 30?

If the HCF of the two numbers is 15 then the two numbers are 15*a and 15*b where ‘a’ and ‘b’ are integers. LCM is a least value of the number divisible by both 15*a and 15*b. So if you are expecting to know the smallest value for the LCM then a=1 and b= 2 could be a possible solution.This gives the LCM of 15 and 30 as 30.

How to find the HCF of 12 and 15 using factors?

HCF can be calculated using: 1. Factoring Example: Find the HCF of 12 and 15 using factors? Step 1: List all of the factors of the given numbers. Step 2: Circle or highlight the numbers that exist in the factors of both numbers and should be the greatest common number.

How to find the HCF of more than 3 numbers?

The above steps can also be used to find the HCF of more than 3 numbers. Example: Find the HCF of 144 and 160 by division method. Since 160>144, so the dividend will be 160 and the divisor will be 144. Hence, we can see here 16 is the highest number which divides 160 and 144. To calculate the LCM of two numbers 60 and 45.