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    LCM for 42 and 86

    "Least Common Multiple" Calculator
    Least Common Multiple of
    and

    What's the Least Common Multiple (LCM) of 42 and 86?

    Answer

    LCM of 42 and 86 is
    1,806

    (One thousand eight hundred six)

    Finding LCM for 42 and 86 using GCF of these numbers

    The first method to find LCM for numbers 42 and 86 is to find Greatest Common Factor (GCF) of these numbers. Here's the formula:

    LCM = (Number1 × Number2) ÷ GCF

    GCF of numbers 42 and 86 is 2, so

    LCM = (42 × 86) ÷ 2

    LCM = 3,612 ÷ 2

    LCM = 1,806

    Finding LCM for 42 and 86 by Listing Multiples

    The second method to find LCM for numbers 42 and 86 is to list out the common multiples for both numbers and pick the first one that matches:

    Multiples of 42: 42, 84, 126, 168, 210, 252, 294, 336, 378, 420, 462, 504, 546, 588, 630, 672, 714, 756, 798, 840, 882, 924, 966, 1,008, 1,050, 1,092, 1,134, 1,176, 1,218, 1,260, 1,302, 1,344, 1,386, 1,428, 1,470, 1,512, 1,554, 1,596, 1,638, 1,680, 1,722, 1,764, 1,806, 1,848, 1,890

    Multiples of 86: 86, 172, 258, 344, 430, 516, 602, 688, 774, 860, 946, 1,032, 1,118, 1,204, 1,290, 1,376, 1,462, 1,548, 1,634, 1,720, 1,806, 1,892, 1,978

    So the LCM for 42 and 86 is 1,806

    Finding LCM for 42 and 86 by Prime Factorization

    Another method to find LCM for numbers 42 and 86 is to list all Prime Factors for both numbers and multiply the highest exponent prime factors:

    All Prime Factors of 42: 2, 3, 7 (exponent form: 21, 31, 71)

    All Prime Factors of 86: 2, 43 (exponent form: 21, 431)

    21 × 31 × 71 × 431 = 1,806

    Related Calculations

    See Also

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    What is the LCM of 42 and 86?. The LCM of 42 and 86 is 1,806 — the smallest common multiple of both integers.
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    LCM Table

    Number 1Number 2LCM
    422884
    4244924
    4245630
    4248336
    4249294
    42501,050
    42521,092
    42532,226
    4256168
    42581,218
    4260420
    42652,730
    4270210
    4272504
    42801,680
    428484
    42861,806
    4290630
    4296672
    4298294
    421002,100
    42105210
    42126126
    42231462
    421,3652,730

    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 42 and 86? (The answer is: 1,806). Select the first number (e.g. '42') and the second number (e.g. '86'). 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 42 and 86?

    LCM of 42 and 86 is 1,806

    How to find the LCM of 42 and 86 using prime factorization?

    To find the LCM of 42 and 86, find all prime factors of both numbers, then multiply the highest power of each prime factor. The result is 1,806.

    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 42 and 86: LCM = 1,806, GCF = 2.

    See Also