They are all positive two-digit whole numbers between 15 and 65.
As to factors, only 1.
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Select ALL pairs of numbers that have a least common multiple of 30
HCF is the highest common factor of two or more numbers. HCF of 20 and 30 is 10.
To find the common factors of 30 and 20, we first list the factors of each number. The factors of 30 are 1, 2, 3, 5, 6, 10, 15, and 30. The factors of 20 are 1, 2, 4, 5, 10, and 20. The factors that are common to both numbers are 1, 2, 5, and 10.
The greatest common factor (or highest common factor) is the highest number that divides exactly into two or more numbers. 20: 1, 2, 4, 5, 10, 20 30: 1, 2, 3, 5, 6, 10, 15, 30 The highest common factor of 20 and 30 is 10.
Greatest common factor of 20 30 and 40 is 10.