Make a factor table. Start with 1 and find a number that multiplies it to give a product of 150. If you cannot find a number that multiples it to return a product of 150, skip it. Repeat with each integer until the factors repeat.
1 x 150 = 150
2 x 75 = 150
3 x 50 = 150
4 x ??? <--- there is no integer, skip it
5 x 30 = 150
6 x 25 = 150
7 x ??? <--- skip it
8 x ??? <--- skip it
9 x ??? <--- skip it
10 x 15 = 150
11 x ??? <--- skip it
12 x ??? <--- skip it
13 x ??? <--- skip it
14 x ??? <--- skip it
15 x 10 = 150 (the same as 10 x 15, the numbers have now repeated)
Write all your numbers down, that you didn't skip, that are between 1 and 50:
1, 2, 3, 5, 6, 10, 15, 25, 30, and 50.
The factors of 150 between 1 and 50 are:
1, 2, 3, 5, 6, 10, 15, 25, 30, and 50.
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120 and 144
What are prime numbers from 1-150?
The GCF of 120, 150, and 180 is 30. The GCF of a set can't be larger than the smallest difference between numbers in the set, which, in this case, is 30. Since 30 is a factor of all of the numbers of the set, it is the GCF.
50,40,39,28,32,54,76
There is not a greatest common factor of 150 because there cannot be a greatest common factor without two or more numbers to compare. Common factors are factors that the numbers being compared have in common.The factors of 150 are 1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, and 150.The prime factors of 150 are 2, 3, 5, and 5.You need at least two numbers to find a GCF.