Question

state the LCM of 5 and 7​

Answer 1

Answer:

LCM(5, 7) = 5×7 = 35

Step-by-step explanation:

5 = 5

7 = 7

LCM = 5×7 = 35

35 / 5 = 7

35 / 7 = 5

What is LCM?

Least common multiple (also called the lowest common multiple or smallest common multiple or LCM) of one or more integer numbers is the smallest positive integer that is divisible by all this numbers.

One way to find the least common multiple of two numbers is to first list the prime factors of each number. Then multiply each factor the greatest number of times it occurs in either number. If the same factor occurs more than once in both numbers, you multiply the factor the greatest number of times it occurs.

For three or more numbers, proceed similarly, multiple the largest found powers of prime factors of given numbers.

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Answer 2

Here is a trick,

To find the LCM of two numbers whose only common factor is 1 (co-prime numbers), multiply the numbers to get the LCM.

5×7=35.

Answer=

35 is the LCM of 5 & 7.