Twenty only has three factor pairs.
(20,1)(10,2)(5,4)
3 pairs
a prime number means it has only two factors 1 and itself. a composite number has more than two factors for example 3 is a prime number because its factors are 1 and itself. 4 is a composite number because it has more than two factors 1,4,2 6,9,10,12,4,8,and 20
How they're listed. The factors of 20 are 1, 2, 4, 5, 10, 20 The factor pairs of 20 are (20,1)(10,2)(5,4)
20
3 pairs of factors. They are: 1 and 20 2 and 10 4 and 5 Pairs of factors are numbers that you multiply together to make that number, e.g. 4x5=20. Trust me I'm a teacher!
Factor pairs are just the factors of a number listed in a different way. The factors of 20 are 1, 2, 4, 5, 10, 20 The factor pairs of 20 are (20,1)(10,2)(5,4)
The factors pairs of 20 are 1x20, 2x10, and 4x5 so 20 has 6 factors and 5 proper factors.
(20,1)(10,2)(5,4)
Yes because it has more than 2 factors
The difference is between factor pairs and distinct factors. With square numbers, one of the factor pairs will be the same number twice. When listing the distinct factors, that number is only listed once.
'''They called composite numbers.''' '''Composite numbers are when they have more than two factors.''' '''A prime number is when it only has 2 factors no more or less.''' '''EX : 20''' '''Factors Of 20 : 1, 20, 2, 10, 4, 5.'''
1 and 20, 2 and 10, 4 and 5 are all of the pairs of factors of 20.