80 has 5 factor pairs.
All of the composite numbers less than 100 have factor pairs.
7
Split 100 into factor pairs. So we have: 100 x 1 50 x 2 25 x 4 20 x 5 10 x 10
5 and 25
Pick any two consecutive numbers in that range.
All of the composite numbers less than 100 have factor pairs.
7
80 has 5 factor pairs.
60, 72, 84, 90 and 96 have 6 factor pairs.
(1,100) (10,10)
100 and 7
Since one dollar is one hundred pennies, the multiplication sentences for 100 would be the same in both cases.
Split 100 into factor pairs. So we have: 100 x 1 50 x 2 25 x 4 20 x 5 10 x 10
1 The factor pairs of 100 are 1 and 100, 2 and 50, 4 and 25, 5 and 20, and 10 and 10. The factor pairs of 49 are 1 and 49, and 7 and 7. Since the only factor they share is 1, 1 is their greatest common factor.
"Distinct" in this case means different. Sometimes factors are repeated. Square numbers have a factor pair that is the same number twice. When we write out the list of numbers, we don't write that number twice. The factor pairs of 100 are (100,1)(50,2)(25,4)(20,5)(10,10) The distinct factors of 100 are 1, 2, 4, 5, 10, 20, 25, 50, 100
5 and 25
3,5 5,7 11,13 17,19 29,31 41,43 59,61 71,73