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    LCM for 4 and 40

    "Least Common Multiple" Calculator

    Least Common Multiple of

    and

    What's the Least Common Multiple (LCM) of 4 and 40?

    Answer

    LCM of 4 and 40 is
    40

    (Forty)

    Finding LCM for 4 and 40 using GCF of these numbers

    The first method to find LCM for numbers 4 and 40 is to find Greatest Common Factor (GCF) of these numbers. Here's the formula:

    LCM = (Number1 × Number2) ÷ GCF

    GCF of numbers 4 and 40 is 4, so

    LCM = (4 × 40) ÷ 4

    LCM = 160 ÷ 4

    LCM = 40

    Finding LCM for 4 and 40 by Listing Multiples

    The second method to find LCM for numbers 4 and 40 is to list out the common multiples for both numbers and pick the first one that matches:

    Multiples of 4: 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48

    Multiples of 40: 40, 80, 120

    So the LCM for 4 and 40 is 40

    Finding LCM for 4 and 40 by Prime Factorization

    Another method to find LCM for numbers 4 and 40 is to list all Prime Factors for both numbers and multiply the highest exponent prime factors:

    All Prime Factors of 4: 2, 2 (exponent form: 22)

    All Prime Factors of 40: 2, 2, 2, 5 (exponent form: 23, 51)

    23 × 51 = 40

    Related Calculations

    See Also

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    What is the LCM of 4 and 40?. The LCM of 4 and 40 is 40 — the smallest common multiple of both integers.
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    LCM Table

    Number 1Number 2LCM
    41352
    41428
    41560
    41616
    41768
    41836
    41976
    42020
    42184
    42424
    425100
    42652
    429116
    43060
    435140
    43636
    43876
    44040
    443172
    44444
    445180
    44692
    447188
    44848
    450100
    451204
    454108
    455220
    459236
    46060

    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 4 and 40? (The answer is: 40). Select the first number (e.g. '4') and the second number (e.g. '40'). 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 4 and 40?

    LCM of 4 and 40 is 40

    How to find the LCM of 4 and 40 using prime factorization?

    To find the LCM of 4 and 40, find all prime factors of both numbers, then multiply the highest power of each prime factor. The result is 40.

    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 4 and 40: LCM = 40, GCF = 4.

    See Also