Favorite Number project Due 10/30

The factors of 21 are 1,3,7,21

The first 3 multiples of 21 are 21,42,63

21 is a compostie number because it has more factors than 1 and itself

The factor pairs of 21 are 1x21 and 3x7

The LCM of 21 and 10 is 210

The prime factorization of 21 is 3x7

The expanded form of 21 is 2x10 + 1x1

21 is an odd number because the last digit is an odd number

The Least common multiple of 21 and 10 is 210

The common factor of 21 is 1

The Greatest Common Factor of 21 is 1

21 is not a sqaure number because it is not divisible by 2