Question

the h.c.f of the two numbers is 1.if their product is 621, what is their l.c.m


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Answer 1

Given:-

• HCF = 1
• Product of numbers = 621

To Find:-

• LCM

Solution :-

We know that product of numbers is equal to the product of LCM and HCF of numbers.

By substituting given HCF in theory,

⇒ HCF × LCM = Product of both numbers

⇒ 1 × LCM = 621

⇒ LCM = 621

Therefore, LCM of numbers is 621.

Extra information:-

• HCF: The greatest common denominator of more than two numbers is the largest number in which all those numbers are completely divided.

Example: - The greatest common factor of the numbers~4, 8, 12 is 4.

• LCM: The least common multiple of two or more numbers is the smallest number that is completely divisible by those numbers.

Example: - Minimum common factor of 4, 8, 12 = 2 × 2 × 2 × 3 = 24

Answer 2

Answer:

1053

Step-by-step explanation:

let the common factor hcf be 1

product 621

prime factor of 621=

3*3*3*3*13

the numbers are 3*3*3*3*1=81 and 13*1=13

lcm 81 *13 =1053

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