The common factors of 40 and 360 are 1, 2, 4, 5, 8, 10, 20 and 40.
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Common factors of 40 and 125 are: 1 and 5.
The least common multiple (LCM) is often also called the lowest common multiple or smallest common multiple. Keep in mind that these different terms all refer to the same thing: the smallest positive integer which is a multiple of two or more numbers.The least common multiple of 36 and 40 is 360.
One way to determine the common factors is to find all the factors of the numbers and compare them. The factors of 15 are 1, 3, 5, and 15. The factors of 40 are 1, 2, 4, 5, 8, 10, 20, and 40. The common factors are 1 and 5. The greatest common factor is 5.
Since 40 is a factor of 80, all of its factors are common.
40 and 98 have no common factors.