Factor 5a-15 Factor out the 5; 5(a-3)
5 is the greatest common factor of 5 and 15. The only other common factor is 1.Since 5 is a factor of 15, it is automatically the GCF.
Which number is a factor of 10 , but not a multiple of 5
Since 15 is a factor of 75, and 15 is its own largest factor, the greatest common factor must be 15.Another way to determine the greatest common factor 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 75 are 1, 3, 5, 15, 25, and 75.The common factors are 1, 3, 5, and 15. Therefore, the greatest common factor is 15.The greatest common factor can also be calculated by identifying the common prime factors and multiplying them together.The prime factors of 15 are 3 and 5.The prime factors of 75 are 3, 5, and 5.The prime factors in common are 3 and 5, so the greatest common factor is 3 x 5 = 15.It is 15
NO!! '10' is a factor of numbers ending in '0' e.g. 1000000. '15' & '25' both end in '5' 10,15, & 25, have a factor of '5' .
Factor 5a-15 Factor out the 5; 5(a-3)
5 is the greatest common factor of 5 and 15. The only other common factor is 1.Since 5 is a factor of 15, it is automatically the GCF.
Since 5 is a factor of 15, it is automatically the greatest common factor of the pair.
15 is a multiple of 5. 15 is not a factor of 25.
The greatest factor of 15 is 15. The greatest factor of 20 is 20. The greatest common factor of 15 and 20 is 5.
Since 5 is a factor of 15, it is automatically the GCF.
Since 5 is a factor of 15, it is automatically the GCF.
The GCF is 15.
Since 5 is a factor of 15, it is automatically the GCF.
Factor them. 3 x 5 = 15 2 x 2 x 2 x 5 = 40 Select the common factor. The GCF is 5.
Which number is a factor of 10 , but not a multiple of 5
The GCF of 5, 15, and 30 is 5. Since 5 is a factor of both 15 and 30, it must be the GCF.