Not a factor of 18 ?
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All factors of 18 are factors of 36, because 18 itself is a factor of 36.
The Greatest Common Factor of 18, 36, and 72 is 18. Since 18 is a factor of 36 and 72, it is automatically the GCF.
The LCM of 18 and 36 is 36.It is: 36
Greatest common factor of 18 36 and 90 is 18.
To find factor pairs of a number, you divide that number by each integer in turn. If the number divides evenly, you take that divisor, and its answer, as a factor pair. 36 can divide by 1, 2, 3, 4, 6, 9, 12, 18 and 36. Thus the factor pairs are 1 and 36, 2 and 18, 3 and 12, 4 and 9, and 6 and 6.