GCF and LCM

3 is the common multiple of both 15 and 18.

• True

• False

17 is one of the common factors of 34 and 51.

• True

• False

The GCF of 16 and 30 is 8.

• True

• False

The LCM of 30 and 48 is 6.

• True

• False

The LCM of 14, 28, and 42 is 14.

• True

• False

The sum of the GCF of 12 and 13 and the LCM of 8 and 11 is 36.

• True

• False

The GCF of two numbers is 16 and their product is 3072. The LCM of the 2 numbers is 192.

• True

• False

The product of two numbers is 2 560 and their LCM is 320. The GCF of the two numbers is 80.

• True

• False

The GCF of 16, 20, 24, and 32 is 8.

• True

• False

The GCF of 4 x 3 x 3, 3 x 4 x 4 and 2 x 3 x 5 is 3 x 3 x 4 x 4 x 5.

• True

• False