Feedback form
Hi! What do you think?

Drag it here or paste with Ctrl+V

    You can also email us on infocalculat.io

    LCM for 1 and 20

    "Least Common Multiple" Calculator
    Least Common Multiple of
    and

    What's the Least Common Multiple (LCM) of 1 and 20?

    Answer

    LCM of 1 and 20 is
    20

    (Twenty)

    Finding LCM for 1 and 20 using GCF of these numbers

    The first method to find LCM for numbers 1 and 20 is to find Greatest Common Factor (GCF) of these numbers. Here's the formula:

    LCM = (Number1 × Number2) ÷ GCF

    GCF of numbers 1 and 20 is 1, so

    LCM = (1 × 20) ÷ 1

    LCM = 20 ÷ 1

    LCM = 20

    Finding LCM for 1 and 20 by Listing Multiples

    The second method to find LCM for numbers 1 and 20 is to list out the common multiples for both numbers and pick the first one that matches:

    Multiples of 1: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22

    Multiples of 20: 20, 40, 60

    So the LCM for 1 and 20 is 20

    Finding LCM for 1 and 20 by Prime Factorization

    Another method to find LCM for numbers 1 and 20 is to list all Prime Factors for both numbers and multiply the highest exponent prime factors:

    1 has no prime factors — 1 is neither prime nor composite

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

    LCM = 20

    Related Calculations

    See Also

    Share This Calculation
    Print
    https://calculat.io/en/number/least-common-multiple-lcm-of/1--20Copy
    <a href="https://calculat.io/en/number/least-common-multiple-lcm-of/1--20">What is the LCM of 1 and 20? - Calculatio</a>Copy
    Facebook
    Twitter
    Telegram
    WhatsApp
    Viber
    Email
    What is the LCM of 1 and 20?. The LCM of 1 and 20 is 20 — the smallest common multiple of both integers.
    https://calculat.io/en/number/least-common-multiple-lcm-of/1--20/generated.jpgCopy

    LCM Table

    Number 1Number 2LCM
    111
    133
    144
    155
    166
    177
    188
    199
    11010
    11212
    11313
    11616
    12020
    12727
    15656
    1100100

    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 1 and 20? (The answer is: 20). Select the first number (e.g. '1') 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 1 and 20?

    LCM of 1 and 20 is 20

    How to find the LCM of 1 and 20 using prime factorization?

    To find the LCM of 1 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 1 and 20: LCM = 20, GCF = 1.

    See Also