GCF Calculator

This tool helps you calculate the GCF (greatest common factor, or greatest common denominator, highest common factor, greatest common divisor) of 2 or more numbers.

LCM Calculator

This tool helps you calculate the LCM (least common multiple, or lowest common multiple, least common divisor) of 2 or more numbers.

Factoring Calculator

This tool helps you instantly calculate the factors of a number that can divise a prime number without a remainder.

Greatest Common Factor Examples

GCF of 8 and 12

GCF of 18 and 24

GCF of 12 and 18

GCF of 16 and 24

GCF of 24 and 36

GCF of 36 and 48

GCF of 30 and 45

GCF of 12 and 20

GCF of 24 and 32

GCF of 15 and 20

GCF of 14 and 21

GCF of 12 and 16

GCF of 12 and 24

GCF of 9 and 15

Least Common Multiple Examples

LCM of 8 and 12

LCM of 6 and 8

LCM of 12 and 18

LCM of 9 and 12

LCM of 3 and 9

LCM of 4 and 9

LCM of 4 and 10

LCM of 15 and 20

LCM of 10 and 15

LCM of 4 and 8

LCM of 6 and 12

LCM of 24 and 36

LCM of 5 and 10

LCM of 8 and 10