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    LCM for 5 and 20

    "Least Common Multiple" Calculator

    Least Common Multiple of

    and

    What's the Least Common Multiple (LCM) of 5 and 20?

    Answer

    LCM of 5 and 20 is
    20

    (Twenty)

    Finding LCM for 5 and 20 using GCF of these numbers

    The first method to find LCM for numbers 5 and 20 is to find Greatest Common Factor (GCF) of these numbers. Here's the formula:

    LCM = (Number1 × Number2) ÷ GCF

    GCF of numbers 5 and 20 is 5, so

    LCM = (5 × 20) ÷ 5

    LCM = 100 ÷ 5

    LCM = 20

    Finding LCM for 5 and 20 by Listing Multiples

    The second method to find LCM for numbers 5 and 20 is to list out the common multiples for both numbers and pick the first one that matches:

    Multiples of 5: 5, 10, 15, 20, 25, 30

    Multiples of 20: 20, 40, 60

    So the LCM for 5 and 20 is 20

    Finding LCM for 5 and 20 by Prime Factorization

    Another method to find LCM for numbers 5 and 20 is to list all Prime Factors for both numbers and multiply the highest exponent prime factors:

    All Prime Factors of 5: 5 (exponent form: 51)

    All Prime Factors of 20: 2, 2, 5 (exponent form: 22, 51)

    51 × 22 = 20

    Related Calculations

    See Also

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    What is the LCM of 5 and 20?. The LCM of 5 and 20 is 20 — the smallest common multiple of both integers.
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    LCM Table

    Number 1Number 2LCM
    5420
    5630
    5735
    5840
    5945
    51010
    51155
    51260
    51365
    51470
    51515
    51680
    51785
    51890
    51995
    52020
    521105
    522110
    524120
    52525
    526130
    527135
    53030
    531155
    532160
    53535
    539195
    54040
    542210
    544220

    About "Least Common Multiple" Calculator

    This calculator will help you find the Least Common Multiple (LCM) of two numbers. For example, it can help you find out what's the Least Common Multiple (LCM) of 5 and 20? (The answer is: 20). Select the first number (e.g. '5') and the second number (e.g. '20'). After that hit the 'Calculate' button.
    Least Common Multiple (LCM) also known as the Lowest Common Multiple or Smallest Common Multiple of 2 numbers - it is the smallest positive integer that is divisible by both numbers
    "Least Common Multiple" Calculator

    Least Common Multiple of

    and

    FAQ

    What's the Least Common Multiple (LCM) of 5 and 20?

    LCM of 5 and 20 is 20

    How to find the LCM of 5 and 20 using prime factorization?

    To find the LCM of 5 and 20, find all prime factors of both numbers, then multiply the highest power of each prime factor. The result is 20.

    What is the difference between LCM and GCF?

    LCM (Least Common Multiple) is the smallest number divisible by both numbers, while GCF (Greatest Common Factor) is the largest number that divides both. For 5 and 20: LCM = 20, GCF = 5.

    See Also