Question

need help now



Two numbers have prime factorizations of 2 ^2 • 3 • 5 and 2 • 3 ^2 • 5.

Which expressions will give the greatest common factor and the least common multiple?



GCF 2 • 3; LCM 2 • 3 • 5

GCF 2 ^2 • 3 ^2; LCM 2 ^2 • 3 ^2 • 5^ 2

GCF 2 • 3 • 5; LCM 2 ^2 • 3 ^2 • 5

GCF 2 ^2 • 3 ^2 • 5; LCM 2 • 3

Answer 1

for the GCF take one number from each common pair and multiply them

Answer 2

LCM

The smallest positive integer into which two or more integers divide evenly. For example, 24 is the LCM of 8 and 12. Sometimes the LCM is written using brackets: [8, 12] = 24.

http://mathwords.com/l/least_common_multiple.htm

Answer 3

GCF

The largest integer that divides evenly into each of a given set of numbers. Often abbreviated GCF or gcf. For example, 6 is the gcf of 30 and 18. Sometimes GCF is written using parentheses: (30, 18) = 6.

http://mathwords.com/g/greatest_common_factor.htm