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    LCM for 16, 20 and 40

    "Least Common Multiple of 3 Numbers" Calculator
    Least Common Multiple of
    ,
    and

    What's the Least Common Multiple (LCM) of 16, 20 and 40?

    Answer

    LCM of 16, 20 and 40 is
    80

    First common multiples: 80, 160, 240, …

    80 is divisible by all three: 80 ÷ 16 = 5, 80 ÷ 20 = 4, 80 ÷ 40 = 2 — and 5, 4 and 2 have no factor but 1 common to all of them, so no smaller number is. As a common denominator: multiply the top and bottom of x/16 by 5 and of y/20 by 4 and of z/40 by 2.

    16 = 24

    20 = 22 × 5

    40 = 23 × 5

    Prime162040Highest power
    224222324
    5—555

    — = power 0: the prime is not a factor of this number; the LCM takes it from the number that has it.

    LCM = 24 × 5 = 80

    More with these numbers

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    https://calculat.io/en/number/least-common-multiple-lcm-of-3-numbers/16--20--40Copy
    <a href="https://calculat.io/en/number/least-common-multiple-lcm-of-3-numbers/16--20--40">What is the LCM of 16, 20 and 40? - Calculatio</a>Copy
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    What is the LCM of 16, 20 and 40? The LCM of 16, 20 and 40 is 80 — the smallest number all three divide with no remainder. Step-by-step solution for three numbers.
    https://calculat.io/en/number/least-common-multiple-lcm-of-3-numbers/16--20--40/generated.jpgCopy

    LCM Table

    1st2nd3rdLCM
    162025400
    1620261,040
    1620272,160
    162028560
    1620292,320
    162030240
    1620312,480
    162032160
    1620332,640
    1620341,360
    162035560
    162036720
    1620372,960
    1620381,520
    1620393,120
    16204080
    1620413,280
    1620421,680
    1620433,440
    162044880
    162045720
    1620461,840
    1620473,760
    162048240
    1620493,920
    162050400
    1620514,080
    1620521,040
    1620534,240
    1620542,160

    FAQ

    What's the Least Common Multiple (LCM) of 16, 20 and 40?

    LCM of 16, 20 and 40 is 80

    How to find the LCM of 16, 20 and 40 by prime factorization?

    Take every prime that appears in 16, 20 and 40 to the highest power it reaches in any one of them and multiply: 2⁴ × 5 = 80.

    Can you get the LCM of 16, 20 and 40 two numbers at a time?

    Yes. The LCM of 16 and 20 is 80, and the LCM of 80 and 40 is 80 — the same answer, because the least common multiple is associative and does not depend on the order of the three numbers.

    Is 80 divisible by 16, 20 and 40?

    Yes, and by definition it is the smallest positive integer that is: 80 ÷ 16, 80 ÷ 20 and 80 ÷ 40 all come out whole. Any other common multiple of 16, 20 and 40 is a multiple of 80.

    See Also